Personality 

• "mom". nags a lot but would go well out of his way for his boys.
• pretends to hate PDA but secretly craves and loves being affectionate.
• likes being thought of as manly and taking care of others but secretly loves being babied too.
• duality of bold vs shy.
• sensitive about his height (cough lack thereof cough)
• quick to get angry and takes instant revenge ten times worse, but doesn't keep grudges.
• bit of a control freak, meticulous, stubborn
• competitive spirit
• tl;dr: bit of a tsun. tries to hide his soft under a layer of tough.

lo and behold, dirty stuff below

• respect, consent, aftercare.
• depending on his partner, could be soft dom, get rough if he is completely sure the other can handle it, or a brat if forced to submit. would also be happy with a competing dynamics. ;3;
• enjoys both topping and bottoming and wants both.
• has a thing for leaving marks (hickeys and bite marks). if he's really into it, he may leave bruises by gripping or scratching too. also hair pulling. he's also fine with recieving all these.
• that said, he prefers to use his mouth for leaving said marks, or kissing, rather than giving head. he's still willing to as long as he gets praised for it.
• on that note. praise over degradation (see again respect), both in giving and recieving
• being out of control scares him, but he secretly loves that fear
• anything not on the lists below is negotiable (probably)
• likes/interests
  • (give&recieve)
  • some forms of breath play (give&recieve)
  • edging, denial, delayed , overstimulation (give&recieve)
  • crossdressing (whoever)
  • bit of voyeurism, mirrors
  • sensory play (rather giving)
  • barebacking
  • nonconventional dynamics: power bottom + submissive top (he'd enjoy being either)
  • moresomes (obviously)
• on the fence/soft limits
  • spanking and pain (maybe willing to give, reluctant to recieve. if you want to punish him, rather tie him up, get him hard and leave him there for a while, or get creative)
  • daddy/mommy kink (he's more than okay with the dynamics but the word is a turn-off. he'd much rather call someone/be called hyung. even or especially if that reverses the age order)
  • pet play (certain elements, like animal ears and tails are okay, but don't make it too realistic)
  • ageplay (similarly with petplay, bit of childishness may be cute, but he doesn't want to feel like he's having with an actual child)
  • primal (may get into it in the moment, but too safety-oriented to let it get rough. though he'd totally enjoy a bit of brawling to see who gets to top)
• hard limits
  • secretions, blood.