And it really isn't NTr cause Ciel the OG protagonist only had one sided crush on Euphemia and he even abandons her in her dire hour and runs away with his tail between his legs. Not really a spoiler it's revealed in 2nd or 3rd chapter iirc. And Euphemia only saw him as her knight not in a romantic way she did want to escape with him and escape from her responsibilities, but she didn't. So title is misleading af. MC didn't rob sh*t he isn't Netori (NTL) bastard.

MC possessed the OG villain after the r*pe incident happened and even after synching, the OG Villain dominates for a fair share of time until MC eventually solves their identity crisis, and MC becomes the dominant force. MC realizes that both him and ferzen are one and the same. Before that he was more or less treating him as a separate entity. After that he does regret his past actions and genuinely comes to care for Euphemia.

However the Stockholm Syndrome was a pain to read, but you need to see what fits the context of the world setting. Fortunately it just lasts for first 2 arcs and eventually they both fall for each other after MC and Ferzen solves their identity crisis.

There is a reason why Ferzen is regarded as one of the most well written main character among the last year novels releasd in KR scene.

Ferzen and Deculein are both similar in their aristocratic demeanor and vainglory. But Ferzen OCD was portrayed more realistically than Deculien's because of author's same medical condition.

But their major point of difference is Ferzen knows how to get sh*t done. He doesn't hesitate to off the variables that will prove to be problematic in future, whether females or male mobs no gender bias.

Stoned mf even offs the OG protagonist Ciel lol.

On other hand Deculein from moral standpoint appears to be better than MC while being as badass as Ferzen. However what's the use, Deculein failed at the end of Villain wants to live.

Major spoilers of VWTL ending scorned as Dragon-Serpant in KR novel scene (Something that started off like a soaring dragon but turned out to be a snake at the end).

Deculein had enough opportunities to save the world without having to sacrifice himself, I honestly like self sacrificial MC a lot and I do love Deculein, but you can't help but admit that Deculein's actions were moronic.

His goal of sacrificing himself to save his loved ones failed. 2 main heroines more or less died ffs what was the point. Tbf Deculein during the last stretch unlike Ferzen felt more like a puppet getting strung along by Gab Song and appeared to be more obsessed with dying than actually getting sh*t done. I blame Gab Song for that tbh. I still think Deculein is one of the best KR MCs I have ever read but you can't deny the fact he was a failure. Even though he saved the world but that too was because he got helped by other heroines but what's the point if some of the people you care about still ended dying when there were better alternatives out there instead of this one.

Anyway, in that regard I like Ferzen Von Schweig Brutein more. He achieves his goal with perfection and proper strategizing. I won't say he is too overpowered there are other ppl stronger than him. There is definitely tension.

the original protagonist named ciel gets himself executed

Ferzen (the body in which our MC transmigrated into) even tried gouging out his older brother's eyes during his childhood days just bcoz both of his eyes were of different color.

He has OCD causing him to want everything to be symmetrical, this will cause him to do things like try to gorge out his brothers eyes since they are different colors. The reason why he fell in love with his wife is because she has the golden ratio or a body that is not flawed according to his OCD, causing him to get a sense of peace when looking at him since his disorder doesn't affect him.

There is a lot of development before he does abusive acts towards the love interest. We get hints that he is a horrible person while also getting a justification on why he went insane, then broken, and now that he is finally getting repaired he is still warped somewhere and so once he starts being fearful of what would happen if his past gets revealed he ends up abusive. The reason why readers still sympathize is because despite how he knows its wrong he still is acting on it, its hard to describe but there is actual justification while at the same time the author isn't playing it off as something positive. The author is purposely displaying that the MC is broken, that he is a horrible person, which is why you pity the protag, because as a reader you have read his traumas, his motivations, how he has a chance to be better but is not taking it out of fear, this causes you as the reader to both sympathize for this situation while hating him at the same time.

(and crazy jealous)

The SNU-SNU is not that Arousing. The tension and heat of the passion is lacking. The build up and atmospherical set-up is severely depleted. The scenario itself is le*d and cause arousal but there should be a slow build up and anticipation for the scene itself that should be there but isn't cause of the abrupt and precise decision making of the MC