younger love interests that are also kinda suspicious

his work hoobae is hiding a lot.
dark energy ??
hidden identities, tragic pasts, obsession, possessiveness, jealousy, taking advantage of seeming pitiful for comfort.

ulterior motives, hidden identity, intertwined pasts, possessiveness, jealousy
Externally gentle Dream Demon x innocent cute new student who always dreams up v delicious nightmares
tentacles lol (SFW)

S-class ester x B-class Guide
Possessive, obsessive, jealous deceivingly pitiful "mad dog"
And calm, cool, collected (for the most part) guide
one of my favourites

pretty sure they are of similar age, idk he looked smaller when they were children ig

ulterior motives, possessive, two-faced, blood crazy villain ml

wow this is so cute, a lot of character development, lots of wholesome relationship establishment, i feel like a lot of drama is coming up
mr perfect from the first couple has some possessive tendencies, and disguises himself
the side/second couple is the one with this dynamic: the younger guy is rich, complicated family relationship and past, gets jealous, kinda clingy, persistent, and has nice character development :)

“We can’t have you running away, can we, sunbae?”

Upon seeing the new freshman brutally destroy a group of upperclassmen in a fight, it was love at first sight.

Childhood friends to enemies to lovers
MC has been trying to find a very nice and very gay love, but there seems to be some external force that always thwarts his plans.
Jealousy, possessiveness, misunderstandings, unrequited love

no memories? can't tell what he's thinking + puppy eyes, interesting combination
man probably has an entire step by step plan mapped out in order to lure in his future bf
+tears

their bodies are the same age but his ...soul? is older
childhood friends who were separated, ml was kinda obsessed
ml knows mc's secret, and other secrets too ig