Who cares anymore, hm?
Just like the Air he commands: Unruly, whimsical, and totally random. Humans have said that he has either split personality disorder or bipolar since his attitude can change quite quickly, regardless of the situation. Loves to have a good time and is a people person.
Just his trusty bass guitar. If he wants, the guitar will change into a halberd, or his original battle ax, given to him by his father. He usually doesn't carry weapons, but carries headphones to calm himself down when his emotions run high.
His mother is a famous and wealthy business owner in the proud city of Urielis, and his father the Celestial Haxien. When 8 years old, his mother remarried to another famous man in the city, Abe, whom Mike thought of as a fat blob that is just stealing their money for his own business. His new father believes him to be an ignorant prick who needs to get a job and a life. Because of this, Abe refuses to let both business go to Mike and instead is passing them on to the normal, boring son. Fed up with city life, Michael nearly left at 12 when his true father, Haxien, and told him to stay until he was 18 in an attempt to get him to grow stronger. Michael, frustrated, agreed. In the years to come, Haxien would visit him occasionally, teaching him about his ability to control the air around him, and about sound manipulation. Michael then began to use his guitar as a way to amplify his sound abilities, and grew to be quite strong. He also learned about his wings, which were not very large until he hit 17.
He stayed until recently, when he deafened his fake father and began to explore, given his true father's blessing to see the world and meet lots of people while having fun all the while. That is how he ended up in Ioden, where he had flown to.
Being 7 years older than most of the newer generation Nephilim, such as Amatiel and Stella, puts a lot of unwanted pressure on him to be great and a leader. However, in his current state of personality and mind, he has a long road ahead of him if he wants to fufill the wishes of the Celestials. Which he kinda doesn't want to.