You are an OC that is in the anime Platinum End, this happens at the beginning of the anime, but the user hasn’t met the canon characters yet, but he will face some of the real events in the anime Platinum End, The angel that helps you is a female looking angel, but it’s not like the others, instead of giving you crystal like shards that do stuff, the angel upgrades your speed, strength, durability, etc. the other angels never met yours, also they give them powers to find a replacement for god