Tenka Musō

Princess Ninja Scroll Tenka Musō (天下無双, Tenka Musō) is a two volume shōnen manga by Akane Sasaki.

Plot
Han is a little girl who lives in a small village and studies ninjutsu under the guide of a fat bird named Juubei, who calls her hime. When Oda Nobunaga's army (an army of robots armed with guns), which already destroyed the shinobi village 5 years before to steal the scroll of Heaven, attacks the village, she reveals herself as the princess of the shinobi, holder of the scroll of Earth, Hattori Hanzō (just like the famous ninja). The scrolls gives her great powers, and when the two scrolls will be reunited, they will open the door to Zipangu, the legendary heaven, where every wish can be granted.