The Sickly Young Man and His Resentful Husband

[The male protagonist is selfish and conspiracy type + competitive love Shura field] [The Lord will be punished if he is cruel and vicious. He needs to be tolerated and cared for. Even he is afraid of going crazy. Yun Lan died of congenital heart disease. He originally thought that the end of his life would be liberation, but he didn't expect that God would not let him go and gave him a chance to travel through time. Even if you dress up as a baby, why are there people with congenital deficiencies in the world of cultivation? And he was the unlucky baby. Although he had a domineering father, his biological father didn't want to see him, his mother's identity was in doubt, his adopted son had all the power, and he was just a little waste that could be broken at a touch. He was weak, taking three steps and taking a break, gasping for air after five steps, and even coughing up his lungs after running a few steps. He is such a person who vomits blood at every turn, possesses innate core fire, and is the perfect candidate for the alchemy master's inheritance. The heir to the God of War looked at him more and more strangely. He used to treat him as a shame, but now he helped him fight against the disaster. There is also this demon king who is a scumbag, and the fox king of the demon world...