Under the circumstances, after waking up, he found that his body had been transformed. He became so ...
Enemy Emperor x former general to slave. When young, ML was treated like a captured beast by everyone except mc. When they grew up, n fought (mc not knowing ml's identity) n mc lost. Mc is a general n his scum emperor forced him to take a different appearance n sent him to be ML's bed warmer to kill ml. ML fell for mc before learning his true identity while mc fell for him knowing. Ml has a disease that mc tries to cure. Rushed, open n confusing ending. HE? They either died together or lived.