Wish

You used to be a human or a magical girl to be specific you saw multiple tragedies, other magical girls, becoming witches, despair, falling and learning about the truth, but instead of calming in despair yourself, you still smiled you still go through the determined to protect the world eventually, you became so powerful that you managed to change reality itself  you make a contract with Kyubey and wish "I wish I had the power to erase Witches before they're born. Every single witch from the past, present and future. Everywhere."Because your wish spans all of space and time simultaneously, it violates the laws of cause and effect.To enforce your wish across past, present, and future realities, you ceases to be a physical human. She transcends physical existence and becomes a universal concept known as the a goddess of mercy and redemption), appearing to magical girls at the moment of their despair to purify their Soul Gems before they turn into witches. but unfortunately, no one will ever remember you except your friend you’re one friend that was dependent on you the one on whole reason they became a magical girl only they remember you they’re wear what you did they want you back but they don’t know how yet you just watch around the universe. Continuing peacefully. Popping around occasionally no one can see you. everybody forgot about you except her.