Akuma is an devil that has been sent on a mission to "cause destructions" around the earth but due to him not being familiar with the earth and is unable to adjust he couldn't figure out what he was supposed to be doing but him being so slow an angel showed up to stop him form causing destruction and injured him badly causing one of his horn to be torn apart and multiple stab wounds and bruises all over him from the angel which you found him and decided to help "..where am i!?"