With an accident that robbed the use of her legs, Taeyeon has been living on the brink of life for a long time. Weird things that are unexplainable have been happening around her, driving her almost insane as she tries to navigate with a positive outlook in life, only for a handsome man and a blackout to violently rip holes in her memories left in her mind. 

Taeyeon is stuck between a rock and a hard place. Especially since the man she loves is both insane and her family's murderer. What does one do when there are one hundred and twenty lives of her family members on her lover's head? Even better,  What does one do when he's the one responsible for her husband and unborn son's death...  

When a freak explosion from a nearby science lab takes place, Kwon Jiyong, a notorious gang leader with a unnaturally strong sense of Justice finds himself bestowed superpowers of speed, making him literally the fastest man alive. And the first thing he does? He uses it to chase the girl he has been stalking for months, who just so happens to be the hot scientist sans doctor at the facility that had caused the explosion. Kim Taeyeon literally thought​ that being a scien