13-some or 2 7-some (6 members each)??? O___O

• 13some
• Two 7some - EXO-K/EXO-M + Jieun/OC(you)
• Two 7some - 3 OTP pairings each + Jieun/OC(you)
• Nope. Author-nim you and cannot write a good sequel so just don't.