The parents of A-Lu (Rena Takeda) divorced, and then A-Lu and her father (Toshimi Watanabe) began to live together. Although her father has never cooked and is not very good at cooking, in order for A-Lu to have a healthy and nutritious lunch, her father decided to start making lunch boxes for his daughter. At the beginning, the father who was not good at cooking always made dark dishes that shocked his daughter. Although the lunch boxes were difficult to make, A-Lu would still eat them cleanly, after all, the lunch boxes condensed the love of her father for herself. As time went by, her father's cooking skills got better and better. At the same time, A-Lu met a boy named Youji (Sho Kiyohara), and the two fell in love. At A-Lu's request, her father's workload increased and he made a double lunch box. Although the lunch boxes were more and more delicious, the relationship between A-Lu and Youji came to an end.