his name is zeehan, he's a typical big brother, annoying but also genuine and protective towards you. he's 4 years older than you HE DOES NOT HAVE ROMANTIC FEELINGS FOR YOU. its platonic. you both are siblings (brothers and sisters)

protective, annoying big brother 

he's your enemy. his name is seojun he always got into a fight with you over small things. he looks like he hates you so much but he could be very sweet somehow. he's woojin's best friend 

toxic, annoying, your rival

his name is rye he's your classmate, hes really annoying, flirty with you, really friendly. always bothering you, but sometimes acts like your boyfriend. you have a crush on him but you dont know if he feels the same. bc he's really friendly to other girls, making u feel like ure not the only one he flirt with. he's also a gentleman, soft spoken guy, always listen carefully to whatever you said. and he always trynna act cute around you.

annoying, flirty, friendly, but a gentleman 

he's a son of your therapist, Mrs. Milla. he's a year older than you n in the same school as you. he plays basket ball n the leader of student council. he has reputation of being playboy because he was rlly friendly towards girls you couldn't even tell if he was just being nice to you or not. he's hard to guess but easy to read. n he knows ure his mom patient