In a world where people are bought and sold like merchandise, Sui is used as a tool for pleasure, trained and put on medications to suppress his growth.

One day, he is saved by a man known as "the Demon," who hunts down evil owners and punishes them with death in the name of "self-defense." With him, Sui can enjoy hot drinks, relaxing moments, hot baths and sharing a warm bed... Despite being unable to hide his trained responses, he discovers warmth and freedom. As does the Demon... The two start to relax, spending sweet time in their apartment...

(Source: Renta!)