Subject To Contract

Desperate to support his daughter, single father Su-Jong accepts a lucrative offer from his former college hoobae, Wu-Min, to participate in a secret research trial. Blinded by the massive payout, Su-Jong signs the papers without reading the details. But the experiment isn't just medical—it's transformative. Waking up to discover his physical anatomy has been altered, Su-Jong realizes he has unknowingly contracted his body away to Wu-Min's private experiments.

(Source: Lezhin US)

Note: Includes eight extra chapters.