The Last Oath Episode 4

In a world ravaged by a deadly zombie virus, humanity is caught in a power struggle between two corrupt pharmaceutical giants seeking to take over the world under the guise of vaccine development. College student Lin Zai is hit particularly hard, losing both his parents and his elder brother.Unexpectedly, Lin Zai discovers that he's immune to zombie bites, making him a valuable asset to those in power. When Lin Zai rescues A Lie, a special agent who's supposed to be hunting him, an unlikely bond forms that soon becomes more intimate than either of them expected. As they navigate an unforgiving world and conflicting loyalties, Lin Zai and A Lie will have to make impossible choices that push their love to the limit.(Source: Viki)