She partly contributes to Ji-hyun's fatal traffic accident as she unsuccessfully tries to end her life, one of many attempts.
She develops a bond with Ji-hyun and rediscovers the strength to go on living from that friendship and after moving on from her tragic past.
A despondent night-shift worker who lives in a run-down apartment alone.
Yi-kyung is shown to be stoic and chronically depressed, with no interest whatsoever in living after her boyfriend's death.
One fateful day interweaves the two characters' stories as Yi-kyung attempts to kill herself by walking into oncoming traffic.
A bystander saves Yi-kyung by pulling her out of harm's way.
; MR: 49 il) is a 2011 South Korean television television series starring Lee Yo-won, Nam Gyu-ri, Jo Hyun-jae, Bae Soo-bin, Jung Il-woo and Seo Ji-hye.
It aired on SBS from March 16 to May 19, 2011 on Wednesdays and Thursdays at for 20 episodes.
Ji-hyun's excitement is muted when she makes an earth-shattering discovery that opens her eyes to the deception around her.
She soon realizes with painful clarity that her life was not so perfect after all and that it won't be as easy to find people who truly love her.
The depth of his feelings for her is revealed in such a way that he knows more about her than her own fiance and friends.
He is Ji-hyun's pillar of support throughout her 49-day journey.
The cyclist reveals to her that he is indeed the "Scheduler," an angelic being charged with guiding souls to their final destinations.