One Piece:The Harem system

Josh was a 23 year old collage student, he was an Otaku and a pure virgin he has no friends and the only thing that kept him company and happy was the anime he watches and the manga and light novels he reads. His favorite anime is one piece and the main reason is the waifu that the anime has and It has a lot of waifu, From Robin to ulti to uta, he loves the girls their and only wished he could reincarnate be make them his, well he got his wish, waking up he wondered where he was then he saw an entity saying the word that gave his so much job"Am here to fulfill your wish" ____________________________ Mc will own a large ship that consist of his harem each will have a powerful devil fruit and also haki. The system will give him the devil fruit and the haki will be learnt personally by his harem except for our mc, the system will give him haki but won't give him the mastery of the haki so he has to train for it a lot.