Naruto: Starting with a Fake Marriage to Tsunade

Yousuke transmigrates into the Naruto world, bringing only the Akame ga Kill! world's Imperial Arm Incursio and three... coffins?! It's the 35th year of Konoha, the early stages of the Second Shinobi World War. Hanzo the Salamander is sharpening his fangs, preparing to declare war on the Five Great Nations. Of course, none of that is the most important point. The most important thing is that Yousuke has to start by pretending to be married to Tsunade, and they're on their way to infiltrate the Hidden Rain Village. Although the 22-year-old Tsunade is really sweet and soft, Yousuke, who is only a mere chunin in strength, thinks: I'm supposed to fight Hanzo the Salamander? The cautious and prudent him would rather run away... Years later, the ninja world has achieved nuclear peace. Tsunade: "Yousuke, where have you run off to this time?" Pakura: "I believe in the peaceful future you spoke of." Hinata Aya: "I am willing to become the blade that realizes your peace." Konan: "Brother, I will take good care of the Akatsuki for you." Terumi...