In a different kind of school where the students were the children of various monsters like gargoyles, zombies, ghosts, mermaids, vampires, and so on, Taeyong, Yuta, Jaemin, Jaehyun, Jungwoo, Mark, Renjun, Chenle, Jisung, Hendery, Xiaojun, Kun, Ten, Jeno, Yangyang, Johnny, Doyoung, Haechan, Winwin, Lucas, Shotaro, Sungchan, Sion, Riku, Yushi, Jaehee, Ryo, and Sakuya were best friends and a very close-knit group. (You choose who you want to be)