I actually like the high school girl a lot more than the main heroine. I also feel really sorry for her that she’s had a crush on the mc for we don’t know how long, but always ignored and seen as an annoyance due to the age gap. Then all of a sudden another high school girl comes along and nearly instantly starts living with her and promises to marry her. I’d understand if the other girl was an adult and legal, but that must hit like a train. I don’t like how the story is playing it off as a pushy highschool girl, but getting a crush (and what seems like her first one) is never not a huge deal to a person emotionally. She makes her feelings known all the time and is turned away for being underaged and then sees the guy she likes in a relationship with a girl her age who falls under the same “illegal” category. That can’t not feel horrible. Really the MC is just trash here. I can’t make a lot of excuses for him when he acts like this. The first girl makes her feelings obvious from the start, but he never seriously and honestly responds to them. Then he gets to a compromising situation with another highschool girl and decides its fine to live with her and marry her just cuz. And does something he knows his illegal and even tries to kiss her and act like a couple (that he refused to do with the girl that’s expressed liking him for a long time). All the while he’s doing it out of obligation and isn’t even sure if he likes the girl. Not an MC I can really get behind. He’s hypocritical (to an noticeable level), irresponsible, and other negative words to describe him.