Some shows you watch because the season made you. Ace of Diamond Act II Season 2 is the kind you watch because you found it first. OLM premieres April 5, 2026, ongoing run, and the manga behind it has been on insider lists for longer than most readers realize.
The setup
Sequel to Diamond no Ace: Act II. Source readers already know the cliff this arc is walking off. Newcomers get the cleanest opening anywhere — the studio framed episode one for people who've never touched the manga.
The hands on it
Production sits at OLM; TV Tokyo, Pony Canyon, Kodansha handle the committee. The studio's track record on adjacent material is the reason fans of the source went from cautious to optimistic the moment the staff list dropped.
Where to catch it
Sundays at 17:30 (JST). Ongoing run, episode count TBC. Same-day simulcast windows are on the usual Western streamers — check your local Crunchyroll, HIDIVE, or Hulu listing for the timed slot.
Should you actually watch
MAL has it at 8.10 off 1,457 ratings — not chart-topping, but the kind of number that holds when the rest of the season starts thinning out around week four. Give it three episodes. If the third doesn't lock you in, drop it without guilt — but I'd bet money it does.