A young man kills his bride on the day of his marriage and goes insane. He wakes up in an asylum with no memory, left in the hands of two mysterious doctors who relate his condition with his biological identity.
Born over a tofu shop in Osaka, twin sisters Reiko and Kyoko have very different characters. Reiko is diligent, and longs for a secure, middle class lifestyle. Kyoko is a free spirit, who seeks thrills and adventure.