) is an adult-themed anime adaptation produced by Studio Hōkiboshi. It premiered in July 2023 as part of the AnimeFesta Plot Summary

During the vacation, Sousuke proposes a "marriage exchange" (spouse swapping) game as a joke. What starts as an awkward suggestion quickly crosses the line into reality. Over the course of a single, fateful night, the boundaries of their marriages are shattered, and they find themselves trapped in a web of secret desires and betrayal from which they cannot return. 👥 Main Characters

The brilliance of the show lies in its character construction. We are introduced to Kousuke and Kanade, the seemingly perfect couple, and their friends Reiji and Asuka. From the outset, the viewer can sense the microscopic cracks in the foundations of these marriages. The "swap" is not an act of sudden passion, but rather the culmination of repressed dissatisfaction.

umbrella, known for producing short-form adult dramas with high-stakes emotional and physical intimacy. Fast-Paced Drama:

: The four friends go on a joint trip to a traditional Japanese inn (onsen), ostensibly to relax and help Reiji and Akana conceive a child. The Conflict