Responses
I feel like him looking young like a high schooler might be a turnoff I guess?? Like even more so if you prefer mature looking people?
True! Since the MC has his own preferences so the ML looking much younger is a big no for the MC, but since he's horny all of his braincells just went to horny jail.
I don't think he's ugly, but he could be called plain looking. I mean the people the MC was with earlier in the chapter were all colored hair and fancy clothes, so in comparison the MC would see the ML as someone "ugly" but really just plain looking.