No medicine of regret

 "When the car exploded I was thrown out, flying a few meters into the air and crashed with the tree. The impact was so heavy that I heard the sound of my hip bone breaking. My driver and the bodyguard died on the spot as they were at front seats"

 "One of my comrade who was with me in the same party was passing through the same road and saw everything, before fainting I just managed to say two words 'keep secret', and that's what my comrade did. He arranged a dead body to cover up everything and make it look like that I died in the accident"

 "I survived but calling me a living dead at that time would be more optimal. After spending almost eleven months in a coma, by the time I return back everything was changed. Kong Da not only took over the charge of the military, but he also adopted you. Taking it as the ideal opportunity I went ahead to investigate the secret base under this disguise" saying he pointed at his burned face.