Childhood friends to lovers josei

Garam is a half-incubus, half-human who must regularly absorb sexual energy in order to stay healthy. The problem is, his body can only take in energy from men, which makes him reluctant to do it at all.
After holding out for too long, Garam’s health begins to fail. Scolded by his older brother and threatened with being sent to a creepy old man if he doesn’t feed soon, Garam panics. Cornered, he promises to try absorbing energy from the classmate who will be sitting next to him at his new academ