The story began with promises. The girl named Asakura, Kimi Ann, whom her childhood friend gave a friendship token, which is going to leave it for some inexplicable reasons. Then, 10 years later, and now she is a second-grandmother of high school. The new chapter of her life will open when she met his rival / classmate Nakadzato Mizuki along with the new Pujaud's newly translated student. In one unexpected day, Mizuki saw a token of Kimi Ann, lying on the floor. Instead of bringing him back, he made a condition with her, and this condition is that she will be his maid in exchange for his token ...