raki is a much needed character in order to "cool down" or to balanced the much violence and gore scene/plot...it's meant to "potong stim"....can't really blame it...u can't keep slashing here with bloods and guts flying here n there...even Bleach also have stupid characters like Kon, and Shinji in Eva is pretty annoying too with that lame ass character,though that's the main part of the show...