Pretty decent game although the was not popular back then but its so good. They added so many features, songs and others. The Gacha system are f2p friendly you dont need to whale on the game you just need to play and interacts on characters. The 3d animations are good the concerts and live stage is so better than i expected and i do enjoy the game. The story is also properly written and nicely paced too.  Some of the  story is surprisingly dark too which is a nice change of tone.