Athletes tend to wear them to support their muscles, and prevent aches, and relieve pulled muscles.
In Kuroko no Basket, and in Kaneki's case, it actually is really logical XD 2 reply
There's a lot of controversy involving Hide.
Ishida recently redrew the first chapter of TG, and Hide asked how Kaneki would feel if the person that's been with him all along, was a ghoul.
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And I honestly expect it to happen at this point, and it's like a sad masochistic game XD reply