After enduring a life of abuse from his father, Sena Kaito was choked to death. When he wakes up, he encounters a seductive beauty named Elisabeth Le Faniu, also known as “Torturchen,” and says that Kaito shall be her servant now! It turns out she summoned his “innocent soul,” and gave him a new body.

Kaito is sick of being someone’s plaything, but when Elisabeth gives him the option of servitude or death, he decides to be her butler. Now he has to help her eliminate 14 high-ranked demons and their contractors! What new hell has he entered into?