Read the fine print, Demon!

Every night, Jae-Hyuk is visited by an uninvited stranger who leaves him drained in more ways than one. The intruder is Mor, an incubus desperate to survive yet terrible at gathering the energy he needs. What started as nightly harassment ends in an unexpected reversal when Mor is trapped in a binding contract with Jae-Hyuk. One longs for freedom, the other wants a normal life, but their unwanted pact begins pulling their hearts in directions neither expected. With desire blurring every line between them, can they face their tangled feelings and uncover the truth behind their growing attachment?

(Source: Lezhin US)