Nitta is an ambitious, young member of the Ashikawa-gumi yakuza syndicate. One day, a mysterious, oval-shaped object falls out of thin air into his apartment, and suddenly changes everything! Inside the object is an expressionless young girl named Hina. The girl has formidable telekinetic powers that she uses to threaten Nitta, forcing him to allow her to live in his apartment. Dangers abound as the yakuza member and young psychic begin their life together as roommates!.