Bunji's friend Daichi is always running around in short pants. One day, he comes across 17 turtles and brings them back to play with. Bunji is all excuses because he doesn't want to study kanji. As Mom is stressed over the situation, the spirit of early education and spirit of educational enrichment appear before her. Of course, it turns into a fight as usual. Mom thinks that Fumi is tone-deaf, but actually it's a trait handed down from her. Wanting to do something about it, Mom hastily buys a piano. The two start to practice, but... Bunji is worried his friends will see him holding hands with his mother at the crosswalk on their way to school, now that he's an elementary school student.
