Update: Ok, talked with a friend who had some understanding of the Japanese language and worked out better titles. I also focused the item more on restoring life than the Oni part.
Fumoha no Kishi = Infertile land knight (Once Yasechi no kishi = Barren land Knight)
Hiyoku no kishi = Fertile (land) Knight
As before, if you have feedback, let me know. I know very little to nothing about Japanese.
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This is kind of a combination of some of an item suggestion and an old OC of mine. Sumiko Himura was original a Warcraft troll death knight that I turned into a "fertility Knight."
Here she with a LLO update.
I didn't want to use Death knight and Fertility knight because they didn't fit her Oni theming, so I made up some words using a Japanese translator. Andeddo-Bugeisha is Undead-martial artist while Hiyokuna-Bugeisha is fertile-martial artist. But that may be more fertile as in land. I don't know, I don't know Japanese.
If anyone does let me know.