Why does the kouhai character exist? He repeatedly gets thrown a semblance of a bone and then any chances of a meaningful arc with him are immediately blown off. All he's done so far is be an obnoxious voyeur. If it was once I wouldn't even care much but I swear to god this author does this in every fucking title of theirs without fail.
The kouhai character just keeps being the worst. Nit only is he a creep, but he adds nothing to the series that couldn’t have been accomplished with the existing characters.