Extremely Unlimited

I would like to use this book to pay tribute to the destruction of the Yakuza, the originator of darkness. This book has nothing to do with the destruction of the Yakuza. This book tells the story of an extremely selfish person flying freely in an infinite world. It may have a female protagonist, but there is no h, because I am not very good at writing h. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.