Literally, you don't even know the ML's name before that pivotal chapter, around ch 60, when MC realizes he's not the character from the novel

It wasn't necessary for their happy ending so I didn't like the MC becoming an Omega that much, although it was done better with more hints and foreshadowing than the typical cliche Omegaverse - i.e. At the very beginning, it's stated that Betas becoming Omegas isn't even news anymore, and the ML was also thought to be a Beta for all of his childhood. Paradoxically, I also wished they had had a happily babies ever after since MC's trait had changed and he should have been able to get pregnant, but I guess I'll have to hope for the extras.

They have known each other since childhood, Cha Eun-hyuk was born beta and was placed together with Jung Joo-Heon who was a beta, Cha Eun-hyuk liked Jung Joo-Heon who introduced him to his favorite dog, although Joo-heon was afraid of the dog he was kind and called Eun-hyuk his older brother, but both forgot about it, the protagonist who discovers this fact thanks to a childhood photo that Eun-hyuk's grandfather gave as a gesture of peace and apology.

Jung Joo-Heon was indeed Cha Eun-hyuk's right-hand man, but it wasn't a cold master-subordinate relationship like the protagonist imagined. In fact, there was a certain camaraderie between them. When Jung Joo-Heon revealed his fear of rain and Cha Eun-hyuk comforted him, they formed a good bond with each other. Jung Joo-Heon treated him like family because he understood that the two of them had bad histories. During Cha Eun-hyuk's heat, he became very sick, so sick that he needed a mate. With no one else left, Jung Joo-Heon took his place, and the two spent that time together. Before Cha Eun-hyuk regained consciousness, Joo-Heon left and hid this fact. Cha Eun-hyuk has no idea of ​​this fact, only that he recovered well. It was only later that Joo-Heon realized that he had a crush on Cha Eun-hyuk, who had feelings for him, but by then it was too late because Eun-hyuk had fallen in love with the florist Yeon-Soo. Jung Joo-Heon helps Cha Eun-hyuk in her illegal capture because the most important thing to him is for Eun-hyuk to be happy. The reason why Cha Eun-hyuk fell in love with Heo Yeon Soo (the protagonist of the original work) is because her pheromone smelled the same as the perfume that Joo-Heon wore when they were together. When Joo-Heon found out about this, he was surprised and also sad, but he kept quiet, continuing the rest of the plot.

The protagonist becomes an omega, at least it didn't come out of nowhere, the author makes his transformation very slow throughout the chapters, it's funny that at first he hates the idea and is happy to be a beta, he even uses the fact that he is a beta to reject the ml, but of course it doesn't work, but sleeping with the ml, he starts to want to be an omega because he suffers in bed.

I love how the protagonist brought a new good plot, saved the ML from drugs that made him a red flag, made the original protagonist achieve his dreams outside the country, helped many people, the whole story went in a good direction, even for him who conquered his true love, even though he doesn't remember.

I loved the ML and MC equally, but my favorite character ended up being the OGMC. He's adorable, funny and strong in character. I can totally see him being an MC of his own story. I also liked how he didn't get the treatment authors usually use where he ends up being the main bad guy behind the scenes or becomes the corrupted rival. He's just doing his own thing and winning in life haha.