It is the constant frenzy of ideas that both makes the game so unique and fun to play, but is also its biggest sour point in a sense. (3dsblessed.com)
While on the note of sour points, Zenfone V's speaker turned crunchy at higher volumes, with high frequencies clipping. (techradar.com)
Outside of the current DPRK situation I wouldn't expect much cooperation between the two, as even though they share a common ally in the US and a common looming regional power in China, the deep cuts that Japan inflicted on its neighbor during WWII have yet to fully heal, with the topic of comfort women being a particularly sour point. (politics.stackexchange.com)