Looking for a yaoi apocalypse novel. I remember that the mc transmigrated in this good for nothing body with water ability. I only remember that he used his water ability in the training of a military or something at beginning of the the novel to face slap someone and the ml saw him. People doesn't have a good opinion about him. The ml was like : interesting, if I remember correctly. Does anyone knows what novel I am talking about? I Am searching this novel for a while.