One Piece: From the Start, the Paramount War

You came from hell, and I came from Impel Down. When she wakes up, Katie suddenly discovers she's become a tiny prisoner on Level One, with just over thirty hours left until Ace's public execution! “Host, don't panic. The Strongest Becomes a God System is at your service. Whatever you want, just copy it, and there's a one-click upgrade feature to help you become a god in an instant!”