Arc 1Nobuhiko’s New Bonds
Nobuhiko moved in with Tsunade, trained in Water and Wind Release, and earned the Third Hokage’s protection despite Danzo’s interest in him. He befriended Kushina and reassured her about being a Jinchūriki, then urged her and Tsunade to consider meeting the Nine-Tails on its terms.
- After Kihara Yusuke died, Nobuhiko awakened his Sharingan, learned about his Senju and Uchiha ancestry, and moved in with Tsunade.
- Tsunade trained Nobuhiko and left for the battlefield, while Nobuhiko practiced Water Release, invented the Wind Body Flicker Technique, and resolved to grow strong enough to protect her.
- Tsunade returned and tested Nobuhiko, then asked the Third Hokage to protect and teach him, and the Third promised to stop Danzo and Root from targeting him.
- Nobuhiko impressed the Third Hokage with his abilities and declarations of loyalty, then sparred with Kushina and agreed to become her friend.
- Nobuhiko asked Kushina to teach him sealing jutsu, and Tsunade warned Kushina that missions outside the village were too dangerous for her.
- After learning Kushina was a Jinchūriki, Nobuhiko called Jinchūriki heroes who deserved respect, reassuring her when she asked if he feared her.
- Kushina asked the Nine-Tails its name, and it offered to reveal it if she let it take over her body to meet Nobuhiko, and Nobuhiko urged Kushina and Tsunade to accept the risk.