one piece harem X male reader (Book 1)

Bio

Name: (Y/N) D. (L/N) (not his original name, inherited it from the person who took him in)

Age: 19 (pre-timeskip) 21 (post-timeskip)

Appearance: look like you except have sharp teeth (Imagine Shinra's teeth) and you will have a singular purple streak in your hair

(You are a devil fruit user and it is a zoan type, my favourite category of devil fruit or should I say our fruit specifically is a mythical down called the human human fruit: model devil but it won't get used for a while yet until the fights in the journey start to get challenging (most likely enies lobby or thriller bark I haven't decided yet and will really get used throughout the post Timeskip) 

(In Addition all mythical zoans come with an extra ability Marco has his regeneration, Kalos has his tough skin and element attacks, Orochi has his extra lives and (Y/N) will be able to shoot out the hottest fire ever, hellfire, a fire said to come from the hottest depths of hell and it'll be red and the fire is hotter than Ace's, Akainu's, Kaido's you name it, it's hotter than that and he can shoot out of any part of his body mouth, hands, legs will be the main ones and the normal buffs you get with the increase in stamina and ectetera like any Zoan would)

Family: are his brothers Ace Sabo and Luffy (grew up with them after he was brought to Dadan too)

Does he have real siblings you may ask? Yes he does but I'm not revealing because spoilers and it's ages away. Plus you can probably guess from earlier in the bio

More on his devil fruit it allows him to turn into a devil (going to use internals from fire force for most of the main ones and we will use rumble balls like Chopper when we get to him and the unique thing he can do with the rumble balls is he can also turn singular parts of his body into the demon form (example he eats 1 rumble ball and he can turn his hands into his demon hands or his feet into demon feet)

Key Note: most of these won't be seen until post Timeskip! And unlike Chopper most of these will still require atleast one rumble ball post Timeskip and a fee Amy require 2 or 3 rumble balls. It wouldn't make sense since Chopper has been experimenting and doing it with rumble balls for a lot of years so it makes sense how he can do it post Timeskip without them but we'd only be doing it for a year ot less (since pre Timeskip is about 10-12 months)

Speaking of which I'll show you the forms

Base form (normal appearance)

Full devil form

(Look like but imagine you have wings on the back and a tail)

Hybrid form