Where is the synopsis? I think you should put one because that is what makes a reader want to read. It can be a short summary or a long mysterious one but it should always include whether he was transmigrated or born there and what his goals may be. Example of short one, “A guy born into One Piece with a single power and a will to adventure” You could also include tags below that, which webnovel does not have like #harem, #noharem, #newcrew, #luffyscrew, or #bountyhunter. Just something for us to go on and see whether we wish to read your story or not.