One Piece: My Brother Garp Starts by Marrying Linlin!

Carter transmigrates into Garp's younger brother, only to marry Linlin right from the start, and from then on, they live a shameless life of having children. 50 years later, Luffy sets sail! Zoro: "Luffy, run! That's Admiral Entei!" Luffy: "It's okay, that's my uncle!" Nami: "Luffy, run! That's Yonko Thor!" Luffy: "It's okay, that's also my uncle!" Usopp: "Luffy, run! The god of Skypiea is here!!" Luffy: "It's okay, that's my aunt." Until one day, Blackbeard comes knocking! Luffy: "Everyone be careful, this guy is a Yonko!!" The Straw Hat crew: "Tell me, which uncle is this?" Luffy: "He's really not!" !!!