About the Sweetness & Lightning Manga Volume 11

Teacher Kouhei is a single father who is terrible at cooking. His adorable little daughter Tsumugi barely remembers the cooking of her mother, who's passed away. But, then, the pair comes across a teenage girl eating rice balls and crying (in joy?) at the park. She takes Kouhei and Tsumugi to her mother's restaurant, where they taste their first home-cooked meal in ages. A tribute to the power of food to bind people together.