On a weekend, Shin Tarou, a hardworking office worker based in Tokyo, finally manages to take a proper vacation and decides to visit his wife's hometown together with her. After a three-hour journey combining shinkansen and local trains from the city, they arrive at a traditional-style house located in a mid-sized city with moderate urban development. Tarou is warmly welcomed by his wife's mother, Shizuko Fujiki, whose voluptuous figure immediately catches his attention, leaving him breathless and secretly intrigued. Surrounded by an atmosphere so different from his daily routine, this homecoming visit promises unexpected discoveries and intense excitement.