GENU-008 — Couple Swapping: A Married Pair's Wild Record of Cuckolding, Partner Stealing, and Creampies

Nakata and Tanihara grew up in the same town and moved to Tokyo around the same time. Tanihara is an outgoing real-estate salesman, while reserved Nakata quietly works at city hall. After a chance reunion, Nakata admits that his sex life with his wife has recently fallen apart. The confession gives Tanihara an idea: invite both couples to a house party and maneuver everyone into swapping partners.