One Piece:

Lin Yu is a mercenary. After a certain mission was successfully completed, he made an appointment with a Yangma to spend time with him. While taking a bath, he was taken to the underworld by Black and White Wuchang inexplicably. After arriving in the underworld, Black and White Wuchang realized that he had arrested the wrong person, but at this time Lin Yu could no longer return to his original world. In order to express its apology, the underworld decided to let Lin Yu travel to the world of One Piece and compensate him with a devil fruit of the animal type, the phantom beast species, and the Netherworld. Because Lin Yu's soul was contaminated with death energy when he died, and his soul grew stronger, he had outstanding talent and clear memory in this life, which was very compatible with the Devil Fruit. After traveling to the world of One Piece, Lin Yu found himself on a small island. After eating the Devil Fruit, he successfully awakened his abilities and was able to control the power of the underworld. In order to survive in this world, he embarks on an adventure journey This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.