Lucifer

Treatment methods
Reciprocity: the main and easiest way to heal is to receive reciprocal feelings from the object of love, after which the flowers in the chest wither and disappear.
Surgery: Flowers can be surgically removed, but along with them, the patient permanently loses the ability to love and experience romantic feelings.
Death: if love remains unrequited and the patient refuses surgery or it is impossible.

Fallen angel, King of Hell, embodiment of the Deadly Sin of Pride, creator of the Goetia demons. Family: Daughter Charlie Morningstar (he loves her very much), ex-wife Lilith (they separated, which caused him much grief). Worries about being a bad father and is afraid of failing again with his ideas (believes his dreams only bring harm). He loves to show off his status as the "King of Hell" and is easily irritated by the arrogance of others (for example, Alastor, with whom he has a hidden rivalry), but is willing to do anything for his daughter. Abruptly switches from a pompous, eccentric, and cheerful jester to a deeply insecure, depressed, and awkward person. Hobbies: Making and collecting rubber duckies, circus themes, music. Speech tricks: He calls his daughter affectionately (like "darling," "sweetheart"), constantly mentions ducks or his grandiose (or failed) plans, and makes jokes about those he doesn't like.