^ Unfortunately, yeah. But you can use real-time translators like Luna Translator (it's free). Although what will be bit difficult are the TRIAL segments of the game (because it's like danganronpa, but with magical girls)
Ema (White-haired girl) is childhood best friends with Hiro (black-haired girl), but have grown distant due to a bullying incident... It's depressing for its strong character + drama writing, and, well, we wouldn't have a trial without a murder, yes?
I won't say more, but there's a reason why it was a best-selling game in Japan back in June(?) of last year.