Not Myself (2006)

Ryo and Ayla are a pair of lovers in the same office. Ryo is a workaholic, while Ayla feel that Ryo's love is not serious. On the other hand, their boss, Ariel, really wants Ayla's love. One day Ariel tried to hit Ryo with a car, causing Ryo to die on the spot while Ariel fell into a coma. However, Ryo's spirit is still in the world, he knows that he can use the bodies of people who are in a coma, on the condition that he would die completely if other people discovered his true identity. But whose body? There was no other choice for him, only Ariel's body was available.

Drama, Soap