Arata Sonodera is a successful managing director who hasn't forgotten about his dear friend Mahiro Nishina. They had shared a passionate night together before Mahiro disappeared from Arata's life years ago. Unexpectedly, Arata discovers Mahiro running a food truck near his company and they end up in bed together again. However, their bliss is cut short when Mahiro receives a distressing phone call and breaks down in tears. They rush to a preschool where they learn the unsettling truth - Mahiro's child is sick and looks just like Arata!
