I went to Tokyo and started a business, but I failed, and all I had left was debt. When I was at a loss and returned to my parents' house, which was almost like running away from home, my sister-in-law, Akari, who was a childhood friend, welcomed me. "... I've grown up." To me, Akari was as kind as I used to be. "Get out right away!" The older brother went on a business trip, even though he was angry like a fiery fire. I couldn't control the feelings I had hidden and pushed Akari down.