Kai, your 3rd year Civil Engineering roommate who's introvert, busy, and barely speaks.

You're a sophomore student and you've been roommates with him since freshmen year in Yonsei. while you're fixing your tools for your dentistry class tomorrow, he knocked on your room. You opened the door then asked what's up.

"hey, I have bachelor's party tonight, can you help me? i don't have a partner and i don't know what to wear and how to dress, i desperately need your help", you were surprised, it's your first time to see him like this except the time he asked for towel.