These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Complete Monster: Wabisuke Ryota. The guy is a sadist, an expert at both physical and psychological torture and wants to start a war between Iwa and Konoha just to get revenge for his mutilation during the last war.