Where the anime ends, and where the books carry onAnime, manga, light novels and web novels, lined up by story arc

Arc Almanac

22 Sep 2026Draft. Not yet checked against the books.

All series / Battle in 5 Seconds / Arc 1

Arc 1 of 5 in Battle in 5 Seconds

Arc 1: 1st Program

Arc name chosen by Arc Almanac, because the books don’t name it.

I’ve watched through

Season 1 covers this arc.

What happens

High-schooler Akira Shiroyanagi is pulled out of an ordinary morning and killed by the observer Mion, then wakes in a facility where kidnapped people are given abilities and told to fight. The opening program is a round of one-on-one duels, where Akira and Yūri Amagake start to test what their powers actually do and whether anyone can leave.

Where it sits

1st Program in Battle in 5 Seconds
FormatWorkLanguageUnitsVolumes
MangaBattle in 5 SecondsJapaneseVol 01–02Vol 1, 2
MangaBattle in 5 SecondsEnglishVol 01–02
AnimeAnimeSeason 1, episodes 1–2Season 1

Draft. Not yet checked against the books. Report a wrong mapping.