Naruto: Konoha's Prince Is Obsessed with Online Games

(Some changes to the timeline) After transmigrating to the Hokage world, he became the younger brother of Tsunade and Nawaki, a sibling who was never supposed to exist. Even more absurdly, he possessed the bloodlines of both the Senju Clan and the Uchiha Clan, and even earned a title on par with Tsunade's. Nawaki: “So was I actually picked up by Dad after all? Waaaah…” Madara Uchiha: “A child of my descendant and Hashirama’s descendant…”