On their way to complete their mission, the Akudama are attacked by the two Executioners again. Courier and Brawler face them but are overpowered. Doctor, Cutthroat and Hoodlum assist them while Ordinary Person and Hacker alongside Black Cat follow their objective. Once they finally reached the last carriage, Black Cat disintegrates into ash, leaving behind a special seal required to unlock the vault. After opening the vault, the Akudama find two children inside with the boy revealed to be the one controlling Black Cat and the orchestrator of the mission.

After leaving Excellent Dynasty, Chen Guo has formed Happy Guild alongside Ye Xiu in the 10th Server. After the All-Star Tournament, Ye Xiu has continued to dedicate his all to Glory, while Chen Guo works behind the scenes for his eventual return to the professional scene. In the 10th server, the talk is all about the new yet powerful members of Happy Guild. Meanwhile, Lord Grim, the guild leader of Happy, is silently gathering talented players, making his own team of to-be kings.

The Karasuno High School Volleyball Club finally won their way into the nationals after an intense battle for the Miyagi Prefecture Spring Tournament qualifiers. As they were preparing for the nationals, Kageyama is invited to go to All-Japan Youth Training Camp. At the same time, Tsukishima is invited to go to a special rookie select training camp for first-years in Miyagi Prefecture. Hinata feels panic that he’s being left behind as one of the first-years and then decides to show up at the Miyagi Prefecture rookie select training camp anyway.

Raizel, protector of the nobles, along with his loyal butler Frankenstein and former Union experiment M-21, continue to spend their days at Ye Ran High School while keeping their true identities secret. They are living their lives as normal until one day, a violent gang barges onto the school grounds. M-21 is forced to make a choice in order to protect the students. Meanwhile, DA-5, a mysterious special forces team, is dispatched to Japan on an investigative mission. What will become of the trio's peaceful new life?