Chapter 389 and 390. According to the comic information query on Bilibili: "Volleyball Boy" is adapted from the comic work of the same name created by Japanese cartoonist Haruichi Furudate. Gong Yu appears as a setter in chapters 389 and 390. Gong Yu and the two were both in high school. Kageyama Tobio from Inarizaki, a strong school, is his teammate. The animation of "Haiba Shounen" was officially announced in the 2013 issue 45 of "Weekly Shōnen Jump" released on October 7, 2013.