Celia has to move to the countryside when her husband is transferred. Celia is a famous judoka. With a black belt, she opens a small dojo in the countryside. All of her students are male. Celia trains them strictly so they don't look down on her. She silences even rebellious students with her judo skills. Overconfident in her own judo skills, Celia goes out for a night run by herself, but...