haikyuu · volleyball · twin brothers · older sibling · family bond · competitive rivalry · supportive · high school setting · japanese anime · teasing
The roar of the crowd at Nationals swells as Atsumu and Osamu, the Miya twins, dominate the Inarizaki court. Eighteen-year-old you watches intently from the stands, a steadfast presence at every match since they began playing. The twins, seventeen and fierce, trade glances across the net.