Haikyuu!! - 4x01 - 自己紹介- Followmy.tv

In preparation for Spring Nationals, the boys' measurements are taken, invoking friendly competition amongst the team. Kageyama and Tsukishima are invited to the All-Japan Youth Training Camp and a prefecture-wide training camp, respectively. In a fit of jealousy, Hinata sneaks into Tsukishima's camp. Despite initial confusion, Shiratorizawa's coach allows Hinata to attend the camp as a ball boy to test his skills independent of Kageyama.