Shizuka Murakami: mẹ kế và con trai riêng đi du lịch đến một khu nghỉ mát suối nước nóng - phần 1

Her stepson has entered the workforce, and with his first salary, she plans an overnight trip to show her filial piety. Although they are in their daily lives, they have always been conscious of each other as man and woman, and this trip brings them together for the first time...