Milf Reiko Makihara and popular actress Yuka Osawa lure you into a deeply entangled world of lesbian training. Reiko's son, Kenji, had become a reclusive shut-in unable to adapt to society, with only his childhood friend Yuka standing by his side. Reiko wished for Yuka to marry Kenji and bring him happiness. But months later, Reiko discovers the true reason behind Yuka's marriage—and that shocking truth will drastically transform their relationship forever.