I go to the Tokyo Dome! / Strict rules of the girl leader of the group of bad kids! / A love letter from the girl leader of a group of bad kids!

Hiroshi and his family go to Tokyo Dome to watch a baseball match. They, unknowingly, sit with the opposite team fans. A local girl gang meets at the park where Shin-chan is playing. The leader takes off in order to chase her crush despite love being against the rules. The Saitama group girls discuss their weekly routine. Ryuko decides to take help from a boy. But when she sees the boy hurt an old lady, she changes her mind.