Konoha: The Man Who Became the Fourth Hokage

Waking up in the world of Naruto, Kyusei thought he had hit the jackpot. Ninja? Chakra? Rasengan? Count him in! But then— He met a cute, sharp-tongued blonde girl... And she claimed to be Minato Namikaze, the Fourth Hokage!? Hold up. What do you mean Minato is now a girl? Before he could even wrap his head around that, fate delivered its next punchline: He was now the male version of Kushina Uzumaki—fiery temper, red hair, and all! ...Yeah. That’s right. He got gender-swapped into Naruto’s mom, and his destined waifu? She’s the tsundere Hokage-to-be with a killer right hook. And just when things couldn’t get any weirder— People from other worlds start crashing into his timeline like it’s a multiverse free-for-all! Alternate realities, identity chaos, unexpected romance(?), and power struggles await as Kyusei tries to survive, thrive, and maybe... become the Hokage himself? — Description from novelcodex.org