Synopsis

One night, as meteors streak across the star-studded sky, Shion Pavlichenko becomes a Contractor. Despite her brother's transformation, Shion's twin sister Suou continues to live a fairly ordinary life, attending middle school with her friends and getting caught up in the awkwardness of growing up. However, everything changes when her home is invaded by a masked man cloaked in black, destroying any sense of normality she once had. Revealed to possess latent Contractor abilities of her own, Suou is caught between family, friends, and her own sense of purpose as she ventures into the ruthless world of cutthroats and espionage that Contractors call home. Meanwhile in Tokyo, investigation surrounding Hell's Gate's sudden collapse is underway, and prophetic signs of doom point in the direction of a silver-haired doll. [Written by MAL Rewrite]

Characters

Hei

Hei, a Contractor assassin known as "The Black Reaper," wields electricity and numerous aliases to carry out covert missions.

Liebrecht Jason

Mao

A Contractor possessing animals, Mao aids Hei in battle, but risks losing himself without network access.

Williams Kent

Suou Pavlichenko

A skilled contractor with a tragic past, Suou fights for survival in a world of powerful abilities.

Viktorin Alison

Misaki Kirihara

Justice-driven Section Chief Misaki Kirihara investigates Contractors, concealing a possible romantic interest in Hei.

Oxley Kate

July

A Doll with glass-based observation powers, July befriends November and April, later joining Hei's group with unclear motives, showing fondness for Suou.

Leigh Cherami