An expedition team that went crazy, disappeared, and dug themselves out twenty years ago;
A sixth person who was "completely obliterated" from files and memories by all team members.
Twenty years later, five descendants, carrying generational debts and forged relics, were lured step by step into a series of deaths:
The underwater city that is always stuck at 03:17, the headless general's tomb that has been wiped out in history books, the survival rules trap that uses panic to kill people, the out-of-control massacre in front of the ownerless dragon chair...
