The life of the young and happy Urara, who is looking forward to her wedding with her boyfriend, begins to fall apart when she discovers that her fiancé is a scoundrel and a swindler. Plunged into debt, he found no better solution than to run away and leave the "receipt" on his beloved bride. Now, a young teacher will have to return the money for the good-for-nothing groom, working at another school. However, she has no idea what she will teach her new students...