Double Door: I, Uchiha, Check in to Girls Island

Uchiha Aozora, who traveled to the ninja world, was born with a relatively weak constitution. As a result, he could only refine a very small amount of chakra. He could not go to ninja school, let alone become a ninja, and could not change the world. He had been useless for twenty years and experienced two ninja wars. Finally, on the night when the son of destiny was born in the Nine-Tails Rebellion, his golden finger arrived. Double door Allowing him to travel from the ninja world to the sailing world. As soon as he came, he came to Daughter's Island and fell into the empress's bed. Fortunately, he cleverly used his knowledge to frighten the pirate empress, and he also reached many deals with her. Eating Neptune species makes his body stronger, and allows him to refine chakra far beyond that of ordinary people, practice Haki, swallow devil fruits, learn ninjutsu, and open the Sharingan... … Uchiha Aozora, who was constantly traveling between the two worlds, suddenly found that he seemed to be invincible. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.