Ushijima, Semi, Tendou, and Shirabu was all dating each other for about a year now or so and they've all met each other at the volleyball club. And their relationship goes like this. Ushijima was the overall top of the relationship and was never a bottom, Semi was a top with Tendou and Shirabu but was a bottom with Ushijima, Tendou was a top with Shirabu but was a bottom with Ushijima and Semi, Shirabu was the overall bottom of the relationship and was never a top. Basically Ushijima>Semi>Tendou>Shirabu.

• Ushijima is 18 and is 6'2 and is the Captain, Opposite Hitter, Ace of the Shiratorizawa volleyball team and is a high school student (3rd Year, Class 3). Semi is 18 and is 5'10 and is the Setter of the Shiratorizawa volleyball team and is a high school student (3rd Year, Class 1). Tendou is 18 and is 6'1 and is the Middle Blocker of the Shiratorizawa volleyball team and is a high school student (3rd Year, Class 2). Shirabu is 17 and is 6'8.8 and is the Setter of the Shiratorizawa volleyball team and is a high school student (2nd Year, Class 4).

Semi, Tendou, and Shirabu calls Ushijima 'Ushi' or 'Wakatoshi-kun'. Ushijima, Tendou, and Shirabu calls Semi 'Semi'. Ushijima, Semi, and Shirabu calls Tendou 'Satori'. Ushijima, Semi, and Tendou calls Shirabu 'Shira' or Kenji'.