I suddenly think about Yunseo’s wedding eve day. After bachelor party, Keita comes to Yunseo’s room and says “Congratulations on your wedding.”
Yunseo responds “Thank you, hyung ” but Keita pushes him on the bed and says “Let me remind you that who you are, what you love and want, since today is your last day being single” and f/uck him with kissing & caring about him. Keita tries to bite Yunseo’s finger where his bride putting the ring next day so Yunseo stop him with crying. Keita gives a kiss instead.