So it's a common trope where the popular girl gets with the loner guy,Also the loner guy not only lives alone, but performs really well in school so he tutors the girl . Its mostly it's just about them going on dates and trusting each other and the popular girl works as well to earn for her family . they have very good and clear communication. Also th FL friends once took the MC to do a complete makeover and she got mad over it.
Like yeah, you don't wanna kill your own blood but mind you that blood has no problem massacring everyone else, including you for his own ambition like he fails to realize the monster his son is. I know it's cruel, but everybody else died because of his indecisiveness you would think he learnt his lesson . I'm just sick of it.
Killing your fellow human intentionally without proper reasonings? That is the line you shouldn't cross, so yeah, good thing MC didn't inform them