Sunggyu wakes up in an alternate universe where everything is beautiful and peaceful. He can't stay, not even when he finds love there. Sungyeol accidentally ends up in what can only be Hell on Earth. Yet, he finds someone who makes him want to stay there forever.  

"Anyways, here's the case. Sungyeol is invited to this wedding and his ex will be there, so I suggested he takes a fake wedding date to make him jealous," Sungjong summarises the whole plan for them, "So, any volunteers?" Myungsoo sure enough did not volunteer, but he ends up as the victim nevertheless.     (This was not a Myungyeol story, but now it is )

  “What if you never knew the truth? What could've happened to both of you?" "She would be still living in hell while I would just watch without being able to do anything."