I’m A Supporting Character but I’m the Protagonist’s First Love

Description

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Kang Tae-Seo’s behavior of putting his cheeks down on my shoulders was natural enough to feel the heat. Then, as the hot breath penetrated the school uniform fabric and reached the skin, I felt goosebumps.

The guy whose eyes were shining like he was trying to catch someone just now is rubbing his cheek as if he were a big cat.

In my heart, I wanted to throw a fist and kick him, but in reality, I couldn’t move at all and just swallowed the resentment, wondering if this punk was crazy.

“Sigh… you have a sweet scent.”

Nevertheless, I wouldn’t accept the Alpha, who has a sweet voice as if he would seduce an Omega.

“It’s because I was making dalgona.”

I’ve never made it, but I’ll break the mood in a second.

“What is that…”

He’s the son of a chaebol family.

Anyway, he was an unpleasant bourgeois bastard.

Associated Names
One entry per line
서브수지만 메인공의 첫사랑입니다
Related Series
N/A
Recommendations
Depressing Illusion (1)
After Differentiating into a Beta and Having Engagement Withdrawn (1)
Beta is Being Chased by the Tyrant Alpha! (1)
After Being Tricked into Marriage by My Ex [Transmigration] (1)
Recommendation Lists
  1. PTR KOREA
  2. TBR 1
  3. BL ABO
  4. K-bl(completed)
  5. Omegaverse Novels U Want to Read (KR)

Latest Release

Date Group Release
04/29/25 ZenithTranslations c152
04/29/25 ZenithTranslations c151
04/29/25 ZenithTranslations c150
04/29/25 ZenithTranslations c149
04/29/25 ZenithTranslations c148
04/29/25 ZenithTranslations c147
04/29/25 ZenithTranslations c146
04/29/25 ZenithTranslations c145
04/29/25 ZenithTranslations c144
04/29/25 ZenithTranslations c143
04/29/25 ZenithTranslations c142
04/29/25 ZenithTranslations c141
04/29/25 ZenithTranslations c140
04/29/25 ZenithTranslations c139
04/29/25 ZenithTranslations c138
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Review
11 Reviews


fuyutsuki
New fuyutsuki
Jul 27, 2025
Status: Completed
It had an interesting premise, and great buildup to the climax. However, the ending was unfortunately lackluster.

... more>>
Spoiler

I caught the hint early MC was going to be Omega eventually cause of the Dalgona references a couple of times so it was not too surprising. After MC presented as Omega, MC and ML are obsessed and possessive of each other like every other Omegaverse BL between Alpha and Omega. MC became such a typical Omega stereotype. Plus MC and ML being h**ny everywhere like typical Alphas and Omegas.

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The supporting characters were quite unique and interesting. So much so that I wanted to know more about them so I felt slightly unsatisfied.

Spoiler

Jung Haejun /Rapper Sun

This poor dude is only around just to help MC when it is convenient and disappears. At least Yeonwoo/Senior has more presence around MC.

Furthermore, at least MC and ML had a conversation with Eunjae for closure, so why not the same for Jung Haejun?? Why on earth did they decide to attend the concert with no greetings to Jung Haejun and leave halfway ? I know ML wanted to leave because of paparazzis but tbh they are already there and was already photographed. Just stay there, staying longer won’t make a difference. At least bring a gift and go show support backstage or something. It’s not uncommon in Korean music culture to have that flowers support stands outside a concert. They are rich af, just buy 1 to support a friend.

Jung Haejun has done so much for MC to try protect MC if he ever wanted to runaway from ML and help MC runaway. AND help ML with all the shenanigans to find MC again. MC keeps saying he is so grateful and all but it feels so bulsh*t because what is words without action?? MC could have done more to show appreciation besides a text and a verbal thanks when they were at the haunted house arc.

Even when MC started presenting as Omega it just feels so unfortunate? Understand Jung Haejun hates pheromone presenting types. However, did Rapper Sun to have, have a unpleasant reaction to MC’s manifestation AND MC have to be disgusted by Jung Haejun’s pheromones? 😩 ? Does that mean they can’t be friends after this and slowly distance away from each other ?? Is he even invited to the wedding ? 🤡


What about his story, and what is in his mind about all these happenings?? And wtf about his CEO brother??? DID HE JUST FALL OFF THE PLANET AFTER THE CREEPY AUCTION ARC (besides some mentions from Lim-Yeon Hwa). Was the misunderstanding about MC cleared up ??? Plus he should apologise for almost raping MC. What was Jung Haejun’s take on his brother’s behaviour??

Joseph

This man just came and disappeared like the wind. No mention of whether he was alright finding his way back to the island. How was he when MC suddenly abandoned him and fled. Does he even know how to go back to the island?? 😩 I am the most curious about this wild fisherman.

How did he end up on that island??? Why does he behave the way he does?? What is his identity???

What does he think of MC and ML getting married?? At least I need to know ML’s impression of this man too???

Seon Iwon

So he found out that MC is Omega. SHOCKED YES, BUT THEN???? THOUGHTS ? OPINIONS? ANYTHING? He does sense the Dalgona scent here and there throughout the story but is this man alright?? He dislikes omegas, will he dislike MC too?? Or is he alright with it since the Dalgonas scent make him hungry?? Does he know they are adopted? When are they going to talk real talk with him for real ?

Yoo EunJae

This poor man got r*ped, and was made to be used by MC and ML. That’s all I can say.

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Great props to the translation team ! <<less
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goghgirl
New goghgirl
Jul 15, 2025
Status: c152
Inregards to the ML..

The ML quickly becomes obsessed with and then subsequently falls in love with the MC.

The ML definitely fits the obsessive archetype but unlike others I've read he prioritizes ensuring that the MC will love him, so he tries to curb some of his yanderish impulses. He consistently prevents MC from leaving him, but rather than force his go to is generally to attempt to persuade him with bargaining, clinginess and love. Because of his inability to communicate with MC via pheromones, he seemed to put in... more>> extra effort to communicate the 'beta' way.

Not that they are great at communicating... The MC fears dying/being abandoned so is determined to abandon ML first. I feel like a lot of their issues could have been resolved with MC communicating his fears and knowledge.

Otherwise... Personally this story was absolutely ruined by the ending.

First at the end they completely forgive one of the villains as simply a misunderstanding..
Spoiler

One of the villains (the mother) threatening behavior over years is completely handwaved away as, oh it's just a miscommunication since MC couldn't smell her pheromones.

They have a scene where MC starts to smell the MIL pheromones and starts to wonder if he misjudged her.. Are we ignoring that the mother was such a raging bigot against betas that she threw away every tea cup that the MC touched? The MIL wanted nothing more than to ruin their relationship and have her son imp**gnate an omega. One of the few reasons MIL likes OP at all up to this point was his willingness to completely bend over backwards to do what she wanted him to do.

While I agree that there was another character who actively did most of the physical violence (brother in law) and had his own secret plots... It's pretty clear the mother did have some knowledge and a hand in what was going on since for example she was the one who called her son to the household while some of that sh*t went down.

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Moving onto the surprise ending where he
Spoiler

differentes into an omega? It feels kinda sucky to be like 'oh he was an omega all along!'. I feel like it was just added so they can have the classic 'happy ending' of the Omega and alpha always end up together and that's so heteronormative in an omega verse sense. Why can't they just be 'gay'?

The ML proved many times that he will love MC regardless of what he is, and the MC has finally decided to love the ML despite the struggles they may face as a alpha/beta couple... So it does kinda diminish some of their main struggles over the whole story. It just feels like 'why?'.

That only happened in the last few epilogue chapters so I feel like I will just selectively ignore that that happened.

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Aureatic
Aureatic
Oct 24, 2023
Status: c8
To give context to the description, MC is transmigrated into an Omegaverse novel he read a day ago into the male lead's first love. What's surprising about MC is that he is a ... more>>
Spoiler

beta. Not a recessive omega, or will eventually turn into an omega, I'm pretty sure he's just an ordinary beta.

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.

ML is a dominant alpha, who in the novel, is supposed to eventually fall in love with an omega after the typical 'drunk-party-one-night-stand' trope. Because MC knows this, he runs away. So far, the story follows flashbacks of how MC and ML fell in love in highschool and MC running away in the present.

Translation: there are a few grammatical errors such as missing an 'an/a' before a noun, but it's still pretty decent.

Oh, and they refer to secondary genders as traits. <<less
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Badwulf13
Badwulf13
May 12, 2024
Status: c25
This novel had a cute premise but I swear my hair is standing on end as the story moves into how the MC and ML met. The sheer yonder’s vibes and red flags are not cute at all. The ML is a psychopath, plotting to force the MC. All the signs of struggle are seen as cute. A line talks about how scared the MC is but then he ‘softens’ and gives in. So many times he just... gives in... I want to scream at him, if this was real... more>> life I’d expect to see him in a true crime documentary. The ML isn’t abusing him but there is no affection, only control. I’m so stressed out reading this. Yandere and possessive lead indeed! <<less
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grtsbby
grtsbby
Oct 28, 2024
Status: c41
I've read up to this chapter, but all I feel with each chapter is an increasingly annoying sense of frustration.

I had high expectations for the MC in the first chapter, but now I'm disappointed with him.

For example: ... more>>
Spoiler

Seon Yi-Gyeol, asleep in Kang Taeseo's arms, showed no sign of wariness. It was puzzling how he could rely on Taeseo so easily while occasionally displaying caution.

Yi-Gyeol was more than just a caught fish; he was practically wearing a nametag with "Kang Taeseo" on it. His rejections were only formal, and he easily allowed Taeseo close with just a little push. Yet, he hesitated to take that final step.

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Like, wtf dude

Just receiving special treatment from ML makes his heart waver. He even forgot his stance!!

He knew that ML wasn't serious and was just playing around, and also knew that every word is just sugar coated words.

And this one is MLs inner monologue
Spoiler

It was at times like these that Taeseo was certain his feelings weren't love.

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It's so frustrating!! So please anyone tell me which chapter the story back to the present time??? <<less
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ThunderingSnow
ThunderingSn
Apr 30, 2025
Status: c152
I really enjoyed the hurt/comfort aspect of overcoming obstacles as an alpha x beta couple but then ... more>>
Spoiler

Seon Yi-Gyeol becomes an omega suddenly in the last few chapters of the main stories and it makes it seem like everything about him having been a beta was worthless since becoming an omega fixes the obstacles (Kang Taeseo's desire to possess him and mother-in-law troubles), and I sincerely think the story would've worked better if they had continued to conquer those troubles with SYG still being a beta till the end (through completing marriage instead of marking+kid and ending the series before the weeding happened)...

Mild note too is that I also really wished they'd tackle a bit about SYG's transmigrated identity being revealed to KTS or his family since they briefly hinted at it, and also showed more spotlight on his friends after he returned from running away

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Overall though, the journey was fun, it was just the ending that flopped hard for me. <<less
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Shizuri
Shizuri
May 29, 2025
Status: c107
I know I've already reached this far especially since this part is the escape arc of the story but... I just can't take it anymore😔

If you want a story where MC is an anxious overthinker and is always on guard with ML's family due to the possibility that they will kill him in the future if he doesn't break up with ML, then this is the story for you. The only redeeming quality is that ML is an obsessive freak but also have lots of love to give to the... more>> MC and is willing to restrain himself to understand MC better.

I would have still like to continue reading, but, I think I lost the feeling of spark anymore. So yeah, peace out✌️ <<less
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RD2007
RD2007
May 25, 2025
Status: c125
This story might not be for everyone. Our MC insecurities would prob be make some readers annoyed. But I see it as something very humane. People often have really unreasonable belief/fear of things that won't actually happen, the what-if and waiting for the rocks to drop. This is a really good story, one where you can see the selfishness, anxiety and trust issue within a person
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Biaaa
Biaaa
Jun 21, 2025
Status: Completed
The story is nice and I really love how both of them love each other so much. Most of you might think that ML loves MC most but they both loved each other. The only difference was MC's constraints. He isn't an overly smart or decisive person but strangely enough he was more of a human. He wasn't timid but not even brave. He was scared yet calm. He was decisive yet indecisive. People has to understand that he was abandoned in real life and knew he would be abandoned... more>> here. But he still clung to ML because he was hungry for affection. He did his best which anyone with a mindset he had could do.

There are a lot of people mentioning ML as yandere and not loving MC. Yes he has yandere vibes but you have to understand that he is alpha is possessive about his beta lover as any alpha is for his omega. 2nd yes he wasn't sincerely in love at start. It was simply dating for 3 years of high school but he fell first and he fell harder. Imagine a beta getting into an accident and is in coma for 3 years but ML didn't left him. He always came to his hospital after school for 3 years straight when his mother is against this. He himself is a dominant alpha and other party is a mere commoner beta.

And about MC that he despite saying no soften easily in front of ml. Then let me say this again. He was abandoned in real life and knew his life wasn't gonna any better than previous life. He could say no to ML but he was weak to affection something he never received. He was hungry for it. His mindset was like.

"Can't I just receive it untill og ML comes." He even told 2nd ML that "he just can't say no to ML's affection. It's nice being loved for once' <<less
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Lann
Lann
May 24, 2025
Status: c152
I have been in my burnt out phase with novels and I started many novels but failed to finish any of them as I lost interest halfway. However when I was reading this novel I didn’t start any other novel and solely focused on finishing this. This alone shows how great the story is. Some people might think MC is annoying but I could understand why he can not be brave in his relationship initially.

... more>>
Spoiler

his first inevitable encounter with the ml, ml’s mother’s threat, Mr. Kang’s plot to kill him and lastly his very much realistic dream during his coma deeply affected mc’s relationship with the ML and all those factors forced him to keep a cool head and be rational.

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I think our MC has very Aquarius like energy in his need to emotionally detach himself from people. However, ML was yellow or red flag at first but once he realized his feelings where true love he become green flag. <<less
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Alma82
Alma82
Mar 28, 2025
Status: c48
Love this so much. The romance is slow burn, even though it feels like it could have turned out to be a typical Omegaverse fast paced smut. At first, Taeseo’s POV made my heart ache for Yi-Gyeol, but as the story progresses, just thinking about what happened in the very first chapter makes me really upset. I think I’ll have to re-read chapter 1 in order to appreciate just how heartbreaking it really is. And although people complain about Yi-Gyeol's seeming indifference, I think they aren’t taking the time to... more>> really emphasise with how lonely he obviously was before transmigration combined with OG Yi-Gyeol's feelings. Have read to ch.48 so far but stopped to write a review as the story is so good. <<less
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