Too lazy to choose what to eat for lunch, Tanaka leaves it up to Ohta. Tanaka claims he can eat anything, but if the food requires some work, he’d rather give it to Ohta. With Ohta’s encouragement, Tanaka manages to eat by himself but needs to rest on the rooftop for eating too much. While they both relax, Ohta remembers what happened that morning. There was a letter of challenge inside Tanaka’s shoe cupboard. But, the peace-loving Tanaka has decided it didn’t happen...

Tanaka arrives to school soaking wet on a rainy day. He doesn’t like using the umbrella because it’s bothersome. He took an umbrella from home, but he never opened the umbrella since it wasn’t raining much. Even though the rain started getting heavy, he continued to walk without using the umbrella. As a result, he catches a cold. At school, Tanaka realizes he forgot his textbook, so he goes next door to ask Echizen to borrow hers. He tries asking her by writing it down since he’s unable to speak due to his sore throat...

On a hot summer day, Ohta and Tanaka go to the public pool. Ohta wants to swim, while Tanaka simply wants to cool down in the pool because he can’t swim. Tanaka, who usually doesn’t move, gets a cramp during his stretch. Under Ohta’s supervision, Tanaka enjoys the pool with his water tube. However, two little kids pick on Tanaka and his water tube rips… Few days later, Miyano comes to ask Tanaka’s advice about wanting to wear a yukata for the upcoming firework show. Along with Shiraishi, the group decides to go to the kimono store...