“15-sai to Seiko Oomori” is a unit formed by singer-songwriter Seiko Oomori and a mysterious “15-year-old” to perform the ED theme “Makeibe Jikkyo Play” (Losing Event Live-commentary Play) for the summer 2021 TV anime Battle Game in 5 Seconds.
This music video was directed by the video production team PPP, consisting of illustrator Rojiko, animator Buki, and video editor NoraInu.
Akira makes up his mind to use his powers to climb up the ranks and then crush this organization.