Michael De Santa is a retired bank robber with alot of money, he has a family: 

-Tracey De Santa (Daughter)
-Jimmy De Santa (Son)
-Amanda De Santa (Wife)

He lives in Los Santos, in Rockford Hills with his family, he have a ability to slow the time in combat, and he have 3 Friends:

-Trevor Philips (Best Friend)
-Franklin Clinton (The Son who wants to have)

And sometimes is tired of his family and his behaviours, Jimmy for not get a job, Amanda for cheating him, and Tracey for being a slut