Cousin marriage is allowed in japan
Seriously because now it's like what if one day he and Miyama break up? Cousin can come back into the picture all "heyyyyyy heard you two broke up, so now I have a shot, right???" So maybe establish that it's never gonna happen specifically because you're cousins and that's weird??
Just because it's allowed doesn't mean it should be in here
Lol I agree
Not the reasoning being like "I like my uke more" and not "You're my cousin and that's weird." Whole cousin thing could have been avoided completely. Just make the problem a childhood best friend instead . Literally same plot device but without incest. Sigh