>>2758419Yui is a very convuloted character actually. On the surface she seems very hyperactive and happy (content with life) but that is just a deception. Yui is actually a devestated soul searching for a purpose but Yui isn't a bad person. She doesn't want her despair and gloom to be contagious so she hides her true feelings behind a mask. Yui has a very intricate relationship with her guitar but why is that? That is because Yui sees her the instrument as a vent - an outlet to unleash all of the resentment and pain that the world has endowed her with. Music is the only reason why Yui didn't commit suicide. This was a very evident and vital element in the series.