Zeno

Zeno opens with two amnesiacs awakening in a locked room, forced into handcuffing themselves together to find a means of escape. Henceforth, the story revolves around the genius Maeno Aki and homicidal maniac Tsugino Haru navigating the strange facility in hopes of finding an exit.

Zeno is a psychological horror puzzle adventure game. Scenario-centered, the difficulty of puzzle solving is low.
Losing memories and waking up from a mysterious place, a genius and a homicidal maniac, Maeno Aki and Tsugino Haru.
These two who are handcuffed together, aim for the exit to escape from this place―