I, Linea Argent, suddenly regained the memories of my previous life after the shock of losing my parents. At home, I’m enduring the sarcasm of my aunt, at school I’m despised as the younger sister of a villain, and now I’m engaged to a 70-year-old grandfather! There’s no way I can leave my cute little sister because I have to get married! Eventually, I starts a small teishoku (set meal) restaurant in the place where I ended up, but before I knew it, I was forced to participate in a huge tourism project that involved the entire village. I just want to live a warm life with my cute little sister, that’s all! A story about a hard-working girl doing her best. Welcome to Aqua Linea, the city of food and tourism.