Shutaro Shina has returned to Japan after a year as a foreign exchange student. In return for college funds, his father tells him he must go to work at his restaurant, Lavieen-Rose. Yukino Kiyose manages this restaurant. Shutaro actually told her that her was in love with her just before she got married.
Once he arrives, many familiar faces welcome him! Tsubomi Kiyose, Aika Izumi, Hiyori Takano, Chimari Shina. On top of everything, this is a lingerie restaurant!!
This is how his heavenly (?) time begins.

[From Gamelex]