Reincarnated as a Cancer Cell

After Casey dies of brain cancer, he discovers he has been reincarnated as a [Cancer Cell] in a xianxia world. His host happens to be the former Young Master of the humble Fiery Sword Sect who was recently exiled due to his disease.

Casey, knowing the horrible truth of his host's condition, decides to betray his fellow [Cancer Cells] and forms a symbiotic relationship with the ailing cultivator. As they explore the cultivation world together, Casey and the former Young Master, named Lin Feng, discover that their union has an unprecedented impact on Lin Feng's cultivation abilities.