Atsuro is the youngest member of Λucifer. When the band first forms, he is still in high school, and is facing pressure from his parents to study for his college entrance exams. His parents do NOT agree with his decision to join a rock band, and for a time, Atsuro was kicked out and forced to live with Towa. The struggle to get his parents to respect his dream of being a rock star and to recognize his talent as a musician.