Is Hoshimachi Suisei in this game? And how can I unlock everything?
unfortunately, there is no easy way to get any specific character without commiting to the gacha grind, the only way to get suisei would probably just to refer to the schedule that boosts hololive character rates, iirc its sunday but I seriously haven't played the game in years so I'm not 100% sure
Also, still not 100% sure but I think the models are the only thing that you can unlock