The Unknown Host

First-year university student Airi Ashino receives a mysterious link from an unknown sender. Thinking it is only a harmless online game, she clicks it without hesitation.
Moments later, she is placed into a strange investigation game alongside other students inside her university campus.
Forced to complete Tasks while following strict rules, Airi and the others must continue the game without knowing who created it-or what awaits them at the end.