Everything in this game is horrible. I don't like to be this direct, but everything, from the gameplay to the gacha and including the performances optimization, is trash. The story of course is good because it's a manga/anime based game, but except that and the design of characters, is an unplayable game, unless you go for pc emulation or you have a top range device. Anyway the device will suffer with you, trying a game like this. I also heard bad things about security problems on players datas and so on, so be care.