Does an Onisu personality count as an Oni?
Onisu.
A topic from AEG's L5R CCG Rules forum, copied for Oracle of the Void from a copy of the forum saved in October 2015, so pages it didn't save are missing. Players' names are left out; the rules officials are named. Rulings are as they stood on these dates; later rulings, the rulebooks and the Rules Archive may differ.
In keywords, parts of words or phrases are not the same as the whole word or phrase. Example: Dragon Clan and Dragon are different keywords. A Ninjato doesn’t count as a Ninja. A Monkey Clan Personality is not a Monk.
Citation
"Onisu" != "Oni" falls under the same category as "Monkey" != "Monk"
Also, from a Storyline side of things that Onisu are not really Oni - they are constructs forged in part from Yume-do (the Realm of Dreams) rather than simply indigenous monsters from Jigoku (the Realm of Fu Leng).