Sentinels Mark X in One Piece World

The Cover is not mine. Credits to the owner/s. ________________________________________________________________ Hello, I am a beginner author. Please say what is good and bad about this novel and I will try my best to improve it. I'm sorry if there is a grammar error. Thank You. This story is a wish-fulfillment of mine. ________________________________________________________________ Minimum of 500 and Maximum of 1000+ words per chapter.