it'd be up to you which one - or could be both? i'd just love someone outgoing and wild who usually pulled him out, and helped him become more of who he is today. maybe met in school after he moved back to seoul or were next door neighbors, then also someone who would save him from terrible dates his parents set up for him.
i also know that stitches really wants hyuna as well, not sure if they have a specific line in mind.