第 15 集: 考試結束後，Ren與朋友們參加煙火大會，卻被Medjed的宣戰聲明打斷。
2018年7月15日 播出
Ren and his friends are done with the final exams and are off to the fireworks festival that they’d been looking forward to. As they are in the midst of determining their next target, they receive a sudden declaration of war from an international hacker organization, Medjed. (Source: Aniplex USA)