Ninja World: Taking Concubines and Becoming Stronger Starts from Marrying Xiyan

Traveling through the ninja world, Birdman accidentally awakened the super concubine-taking system of having many children and many blessings. This system can be upgraded. The higher the level, the richer the rewards. So Birdman started a crazy concubinage operation in the ninja world! Bite! Congratulations to the host for marrying Maoyue Xiyan! Reward all chakra attributes and physique! Bite! Congratulations to the host for marrying Xiang Phosphorus, and the host will be rewarded with the ability to perceive a wide range of things! Bite! Congratulations to the host for marrying Hinata and system upgrade! Target selection is no longer limited to humans! Tsunade: "Birdman, now that we're both like that... Can I be the eldest sister?" Otsutsuki Kaguya: "Maybe by following Birdman, I will have a way out..." Orochimaru: "Yin-Yang Separation Technique? Bird people are real scientific experts! I am ashamed of myself!" Yang Jiuwei: "Yin Jiuwei, Birdman is a human being!" Yin Jiuwei: "I just want to give birth to a little Jiuwei for the bird..." Immortal of Six Paths: "That's outrageous..." This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.