Mo Chanyoung is a busy single father raising his daughter. One day, his first love, Ryu Seok, who ghosted him nine years ago, moves in next door.
Chanyoung grows increasingly bothered by Seok, who has become even more shameless and promiscuous.
He even discovers that Seok is actually Yoonsoo, his favorite author. What's more, Seok casually brings up their past...
And provocatively asks Chanyoung to use his body to help him write.
"I liked it best when I did it with you."
