Fresh out of school, Harumi and Misuzu pursue opposite strategies to win the love of Keita. While they are fighting over him, he announces that he will return in one year and choose one. Harumi, who's saving herself for him, gets a job at a maid's café, figuring she needs to learn to be of service. Misuzu, who has slept with many men, figures Keita is a masochist, so she becomes a dominatrix. Harumi, with help from her co-worker Maiko, teaches herself to make delicious onigiri. Is food prepared with love the way to a man's heart, or is it a whip?

One day, Shuichi witnesses a flashy woman getting excited after being groped on a crowded train. The next day, Noriko, the daughter of an acquaintance of his father, comes to his house as Shuichi's tutor. Although her hairstyle is different and she is wearing glasses, she is the spitting image of the woman on the train...