Don't play this game. The gacha rates are rigged, I spent money and never got at least 1 easy to acquire characters that I want, as opposed to other games. The developers are lazy and doesn't listen to their players. Most of the game is just fillers, the update is too slow and isn't meaningful. Especially the events, they aren't relevant to the main story, just minigames that will be gone after a while. And you're unlucky as a beginner since it has too many anti-beginner systems.