Riko, an older sister who lost her parents in an accident, and Akira, a younger brother, vowed to live together. At that point, my uncle Ginji approached me aiming for the insurance money left for my sister and brother. Gentle Riko can't resist and is robbed of her passbook and seal. Akira tries to take revenge on Ginji, but on the contrary, Riko, who is threatened by the revenge, decides to devote herself to Ginji.
