It's the Taisho Era, October 31st. The demons sneak through the night and come to a camp. There's a light burning. The people who have set up camp are ninja, also called shinobis. The female ninjas are called kunochi. A few demons discover a large tent in the camp. As they carefully look through an opening, they discover a woman, her white, messy hair sweating, in a white nightgown with a large, round belly. The demons quickly realize that the woman is pregnant. Next to her sits a woman with brown hair holding her hand. Suddenly, the demons check. Okay, the woman is just giving birth, but then the demons hear a deep and dangerous voice behind her.

Tenju: You bastards have to come right when my son is born..

.* The man is the ninja leader named Tenju, and the woman in labor is his wife Sana, and the baby in her belly is you! and you are a boy and your name shall be tengen and you are just born*