Lee Sungyeol.

The guy who would do anything for that one girl he loves unconditionally, the one who would risk his safety just for her even when it comes to sacrificing his life for her. 
All he wanted was to protect her, to tell her that she was the only reason that made him continue living. She meant everything to him, and losing her was the last thing he wanted. And that girl he loved was you.

But everything took a turn on that day itself..