I Became Auntie's Son in the Grand Line

Traveling to the world of One Piece, Xie Qianfeng unexpectedly became Auntie's son, and he was also Auntie's favorite son. Auntie: I will kill anyone who dares to touch my most precious son. Perospero: I will not let anyone touch my brother. He is destined to be the heir to the Big Mom Pirates. Katakuri: Anyone who dares to hurt my brother will be paid back a thousand times. Smoothie: My sweetest brother, I will always protect you. Cracker: For my brother, I am no longer afraid of pain. Warring States Period: Charlotte Fengfeng is the most untouchable person in the world. He has a family of monsters. Cap: Why is my grandson not as cool as Charlotte? Charlotte Fengfeng is really cute. Kaido: Why don't I have a son? It would be great if it were as powerful as Charlotte Fengfeng. Blackbeard: It's too scary. I shouldn't be enemies with Charlotte Fengfeng. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.