A popular actor named Kouki is dating a cafe worker named Kaede, and they live together in a happy, peaceful relationship. One day, Kouki becomes fascinated by the netorase fetish, wanting to have someone else take Kaede away from him, though he insists that actual cheating is forbidden. He jokingly suggests this to Kaede, who dismisses it as a silly fantasy, but Kouki soon returns home with a collection of lifelike sex toys designed to simulate someone else's anatomy.

Kouki proceeds to name one particular vibrator Takashi and encourages Kaede to imagine it belongs to another man. Skeptical, Kaede initially believes he will feel nothing, but finds the experience unexpectedly pleasurable and finds himself growing attached to Takashi. As Kouki becomes busier with his acting career, the vibrator keeps Kaede company and alleviates his loneliness. Its presence grows increasingly significant for Kaede, leading both men to question whether using the toy constitutes a real betrayal. Their dilemma is suddenly interrupted when Takashi breaks, leaving them to confront their situation directly.

The unusual crisis ultimately deepens their bond, and just when they accept moving forward without the toy, it returns to them. The story includes a surreal moment where a personified version of Takashi appears in one of Kouki’s strange dreams and speaks to him in a way that reflects the couple’s connection. The manga is a lighthearted comedic take on a fake netorase scenario, focusing on the absurd yet affectionate dynamics of the couple as they explore an unusual fantasy without crossing the line into infidelity.