Original writer is Kitajima Takashi and mad into a manga by Kitagawa Miyuki, Lettuce to Ken is a manga about Satsuki who grow up in Kendou Dojo.
Satsuki has short patient and always end up in a fight with the bully. She knows Kendou very well because her father is a Kendou Instructor and he also own a Dojo. Satsuki's dad has had it with Satsuki so he send her off to stay over with her uncle at Kamakura.
At Satsuki's new school, the director is very strict and the Gym teacher here is abuse his power to discipline children by using physical violence as a corporal punishment. Will Satsuki make it in this school?