practices so vigorously he loses sight of everything else, through the night, constantly, even on his injury
gets overwhelmed and needs somebody there to ground him from time to time. his panic attack looks awfully similar to sensory overload
volleyball is his special interest !! he always makes time to keep tabs on his opponent and thoroughly scour their previous matches. iwa even tells him not to stay up too late when he sees him with the disc because its such a known habit for him
and lastly......