Is War of the Adults Finished? No — Still Ongoing, 6 Volumes
No — War of the Adults is not finished yet (still ongoing). 6 volumes are out in Japan; the latest came out in October 2026.
Everything below reflects the Japanese edition — the source of truth that runs months or years ahead of English releases — computed from official publication records.
Volumes in Japan: 6 (latest: 大人大戦 6, 2026-10-02)
Next volume in Japan: not yet announced in Japan.
Status: No — War of the Adults is not finished yet (still ongoing). 6 volumes are out in Japan; the latest came out in October 2026.
Serialized since: 2025