I only remember a little.MC is from apocalypse world .He killed the zombie king and he also died. Then he transmigrated into another world.In the world he transmigrate,they have to go to mission world to do tasks.They live with resources from mission world.The body he possess is weak chicken.Then MC went to party and met with ML. I don't remember clearly why Ml take MC with him .But he take MC with him so everyone think he raise boy toy.Then MC also have to go for mission world andeveryone think he is just weak chicken.But MC is strong just like ML.They also meet in mission world but ML and his friends they strong guys they want to seek is MC.please help me if you know this novel name