Platinum End

Since he lost his family in an explosion, Mirai Kakehashi, every day endures abuse. Thus decided to toss it in, he stands on the edge of a precipice and jumps. But, instead of dying he meets a winged being who claims to be his guardian angel named Nasse, the angel convinces him to go on living giving him 2 items but explaining little, yes, there's a catch. With Nasse's gifts, Mirai is flung into showdown with 12 other persons, one of which will be chosen to become the next God. (source unknown)