Why is this inflected in the ki-vi class?
In addition to the ki/vi class agreements, the vi- prefix is adverbial. It's not related to the ki/vi noun class when used this way.
should also allow reply well...
Is good answer also correct?
'good' is never used as an adverb
I had fleetingly considered that as well and then realized it was "jibuni" -- a command -- and not "jibu" which would have given me a choice of noun or verb.