After losing her husband, Chisato worked as an office lady in the daytime and worked in a tavern at night to raise siblings. My daughter Aoi loved such a mother. I longed for my mother, but eventually it replaced my love beyond parents and children. One day, my brother planned a family trip with his first bonus. Aoi also took part in it and invested in it, but at the last minute his younger brother had an errand, and it was a trip alone for his mother and daughter.