When the mysterious man opened the broadcast declaration assassination system classroom, he started a game that made people disappear. In order to investigate the causes and consequences of the disappearance event, a well-hidden master lurked in the one-year S group. The purpose of the mysterious man was to collect clones and let the clones cooperate with him to complete the agreement of the disappearance event.
This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.
