no, the annoying guy is the villain, the mafia guy is the 2nd love interest/ mini villain, and the one with brother is the actual love interest that he ends up with

Yoon is from jeawo's real world and was also the one who transportet him and himself into the novel, it's an ability yoon has. He did that because he wanted jeawo to suffer or whatever. One thing Leads to another and they almost had their happy ending but yoon got jeawo killed and transportet both back into the real world. Jeawo wanted to go back into the novel and he did. The character jeawo is dead, so he has to live as his real self in this world. Another thing Leads to another thing again and the og!mc finds out that jeawo is jeawo and what actually happened. They get together and finally have their happy ending (even tho the mafia guy tried to get between them but failed lol