Saya, a career woman at a major corporation, appears gentle and well-respected on the surface, but in reality, she harbors such intense sexual desires that she can't maintain her sanity without masturbation. When her junior colleague Himari, who missed the last train, suddenly shows up, Saya is forced into a shared room and abstinence. As she continues to suppress her masturbation urges, Saya gradually loses her rationality and turns to using Himari's personal items for self-pleasure, leading to a shocking development.

Upon actually watching it, the masturbation scenes are plentiful, while the scenes of being dominated are more restrained, effectively portraying Saya's inner turmoil. Both actresses combine sexiness and cuteness, and although I felt there could have been more intense moments, the lack of scenes where the junior is counter-attacked with sex toys left me slightly unsatisfied.

It's particularly disappointing that there were no 69 or female mutual licking scenes; with these two actresses, one would expect to see more intense lesbian play. The first hour didn't feel drawn out; in fact, it seemed a bit short. The hair entanglement was mild, but the actresses' charms were fully displayed. Overall, this is a unique work focused on masturbation, making it a must-see for fans.