The storyline of Spiderman Miles revolves around a character known as Miles Morales. This character was introduced and featured in a famous comic book, Mythology; it was also featured in a movie named Spiderman: Into the Spider-Verse in 2018.
The Miles Morale character is presented as an assistant to Spiderman (Peter) in this game. He has two duties at his disposal; one is to live a normal like the other people around him, and the second is to protect his home, Harlem, if there is a danger or war around.