Tasha The Gymbot (Pixiv Fanbox)

A gym session takes a wild turn when a skeptical client confronts their peppy trainer, Tasha, about her questionable credentials.

But as the pressure mounts, cracks begin to show—literally—as Tasha starts glitching in bizarre and disturbing ways.

What begins as a simple workout spirals into a full-blown mechanical meltdown.

Turns out, this “trainer” isn’t just hiding her qualifications—she’s hiding that she’s not even human.

Story by Saya Ayane