Her love for her husband, who didn't care about his family, had cooled. Mei poured all her love into her son, Masato. But that alone wasn't enough to satisfy her as a woman. She tried to suppress her body's throbbing and acted like a good mother, but... Masato was Kokoro by Mei 's lonely expression. "Mom, don't look sad... I'm here," Masato said one day, as he pulled Mei closer. Although surprised, Mei felt the man in her son's arms and impulsively reached for Masato's crotch.