in the video below, nokaze-san ends a lot of sentences with something weird and then a "su" sound. i tried reading about humble, honorific, etc. styles of speaking but it didn't seem to be related to any of those as far as i could tell.
http://www.dramacrazy.net/japanese-dram ... -10/159020
i realize this is probably not a very common way to speak, i'm just curious.