"The river of time can only flow in opposite directions, not at the same time."
Five invitations from "dead people" summon five strangers to a mysterious theater that only exists in the gap between midnight and dawn.
Lin Moshi, a genius Go player, suffers from hyperamnesia and can remember every detail of his life - but he can only not remember the past in the orphanage "Taoyuan" before he was five years old.
You are thrown into a series of strange dungeons based on the rules of "time loop" - the never-ending Qianqiu Banquet, the Twin Towns where the time flow is split, the orphanage made of memory fragments... Every time you clear a dungeon, you are one step closer to the truth.