The Rules of Insane Top

Jung-Woo, a kind-hearted soul, follows an injured pigeon he once helped to a hidden spot behind his school. There, he discovers his ideal type: Hae-In, peacefully napping with an angelic presence. Instantly captivated, Jung-Woo feels destined to be with Hae-In and approaches him—only to learn that Hae-In’s type is the opposite of who he is: a ruthless “insane top.” Eight years later, they meet again at a bookstore. A fierce showdown begins between Jung-Woo, determined to prove he’s become the “insane top” of Hae-In’s dreams, and Hae-In, intent on bringing back the sweet man he once fell in love with.

(Source: Lezhin US)

Note:
- Chapter count includes a prologue.
- Part of Lezhin's Gwanggong Collection (광공단편선). A gwanggong (광공, hanja: 狂攻) character is obsessed with the object of their desire, similar to the Japanese "yandere". Scanlations have erroneously translated this to "GwangGong Apartment/Industrial Complex", which may have caused confusion.