Oni are horned, ogre-like creatures in Japanese folklore. They have also been described as orc-like, demon-like, goblin-like, and troll-like. However, an oni is best categorized as a type of Japanese yōkai, which includes wicked otherworldly monsters, goblins, gods, ghosts, and spirits.
Once long ago there was a very powerful shogun, and he married a beautiful woman. Together they were happy with no want for anything in their comfortable lives. Except for one thing.
A child.
Even though they tried for many years, they still went without children. One day the woman of the couple decided to take a long walk in the woods to try to forget about her troubles when she came across a mysterious healer.
"My lady, you seem quite troubled. Would you like to tell me?", the man offered.
"Why? You wouldn't even be able to help me. It's no use."
"Try me. I might surprise you."
"My husband is happy with life and we wish for nothing but a child however it seems that the gods do not seem to want to bless us with one."
"Oh. Is that all?", the healer laughed before reaching into the folds of his cloak and pulling out a small box which contained three seeds. *I have the exact solution. Take these flower seeds and plant them in your garden in a place only you'll know. One month from now on the night of the blue moon, three flowers will appear."
"What good will flowers do me?"
"They're blessed by the goddess of fertility," the man explained, "Of the three there will be three flowers. A white lotus, a red spider lily, and a black rose. If you eat the white lily you'll gain a son as pure and kind hearted as the heavens. If you eat the red spider lily you'll receive a son as fast and strong as the fiercest warrior. If you choose the black one you'll receive a son as smart as a hundred scholars! Eating any two of the three will result in twins with all the traits of both flowers!"
The woman was so pleased with her gift. It would be the solution to all her problems and she left with the seeds. However the healer gave her a grisly warning.
"These flowers are enchanted by magic no mortal body can handle so there's a limit to how much you can have without a blessing turning to a curse. Remember. You may only have up to TWO. Eating all three will have deadly consequences that even I don't know what could happen. Heed my warnings, My Lady. Or disaster will befall thee."
The woman promised to remember the warnings given to her and that night planted the seeds in a place only she knew about telling no one. A month later on the blue moon she went back out and found the three flowers the man spoke of. She had already decided to eat the lily and lotus, but at the last moment decided to eat all three. It was a blessing from the goddess of fertility after all. Nothing really bad could come from a blessing. And she wanted her children to have all the traits the flowers promised.