Osomatsu-san: Season 1, Episode 20

1 - 20: Teach Me, Hatabou / School Master / Iyami's School

Hatabou starts his own catering service. Later, Osomatsu and Karamatsu play as delinquent high school students competing to see who's the toughest. Afterwards, Iyami starts a comedy class hoping to earn a quick buck.