This is the stage play adaptation of the original SK8 the Infinity anime series. Part 1 was performed from December 2 to December 12, 2021 at THE GALAXY THEATRE.

Miyako starts a live-in maid job and quickly discovers that housecleaning is the least of her duties, as her employers use the maids in their twisted fantasies. Her co-worker Mai-chan, who can miraculously recover from any injury, becomes the focus of horrific, indulgent violence that Miyako is soon drawn into.