Living in the World of Naruto, Marrying Tsunade

Arata Itsuki transmigrated into the world of Naruto right as the Jõnin Meeting was taking place! At this moment, Tsunade had just proposed a reform of Konoha's medical system... only to be immediately rejected. As Tsunade's classmate, Arata felt he was just there to "stand around and do nothing." Right then- the system suddenly appeared! 【System initializing. Given the host's current situation, three opening options will be provided!】 【Option 1: Play the salted-fish route, stay out of everything, avoid all major plotlines. Reward: Improved Eight Gates Jutsu!】 【Option 2: Strongly oppose Tsunade. Reward: Eternal Mangekyō Sharingan.】 【Option 3: Express support for Tsunade before Katō Dan does. Reward: Supreme Newbie Gift Pack!】 Arata chooses...