User blog comment:Lotary/Koharu in Season 2?!/@comment-3487190-20170303085309/@comment-3487190-20170303085629

Just about Koharu's possible return, since her voice actress still particiaptes in the game, her return in anime isn't a surprise as well. What we should focus on are her role and and treatment in further plot.

As we know Koharu is, as a fact, the worst-treated main character in the first thirty episodes. No matter how her leaving and return influence the story, if she's still not getting any song/live, it means nothing. Even worse, new season has raised the bar that main characters would be the muses of own brands, and Koharu needs more to achieve that goal.

Another problem of being in Venus Ark is, this school might continue its journey and leave Japan one day. If Koharu still sticks to them, that means she would leave away once again. Unless she eventually decides to stay in Japan with Yume.