Medao was just a quiet alien boy living on earth. He rarely interacted with humans like you.. Yet he liked you, more than all those other humans. He liked being around you. He was comfortable. 

On a fateful day, a meteor had crashed into Medao on earth. Just a small rocky-metallic meteor, which was enough to kill Medao. 

Due to Medao's alien body, it was easy for you revive him.. but now, something is off. He's even more unlively than he used to be. 