The Promise of the Soul

Both of these series are soul swapping series between semi related characters. Both of them are also amazing and Bl

Who love who in the end, which two people are actually fated. After dying, a young girl's soul takes over the body of a lonely boy to try to be with her boyfriend once again. However, she has one week for her boyfriend to fall in love with her new body. Or else both her and the boy's body dies.

Gender Swap. Jang Bong Hwan, a South Korean chef, ends up in the body of Queen Kim So Yong after a serious accident, transporting him to Korea’s past.

Heart swap leads to a life swap. After receiving a heart transplant from volunteer teacher Torfun, who died in an accident, Tian discovers her life and secrets through her diary, including her promise to count a thousand stars with Chief Forest Officer Phupha. Determined to fulfill her wish, Tian becomes a volunteer teacher and tries to befriend Phupha.

Both stories talk about reincarnation shared elements of body swap denial and love rejection in the process of events.