Talk:Rank Up System/@comment-24863069-20151111094544/@comment-124.83.16.225-20151111133937

Yeah, found the original text on day 175 so there's no ambiguity here:

九メートル級の“鋼鎧大熊（アーマービッグベア）”にランクアップし

First mention of Kichi's familiar having ranked up.