Many things, including video gaming, anime, martial arts, and the like. Currently I'm waiting for the fall season to get started for some shows I have been following: Owari no Seraph and a few others are on the list.
No but then people control it by willpower in the real world those sorts of things so in a sense Oikawa not drawing the sword is his willpower to over come the personality whilst he's in the coma ^^
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