Season guide
GameCenter CX: Season 21
20 episodes
Premiered Apr 21, 2017 Updated Sep 27, 2026
Previously on GameCenter CX
Season 21 Lore Primer
Key plot threads, lore context, and character stakes you need to remember before diving into this season.
- Directly follows the overarching narrative developments of GameCenter CX Season 20.
- Faction dynamics and core character alliances shift under escalating external stakes.
- Crucial mysteries introduced previously reach key turning points and narrative reckonings.
- Sets up serialized story arcs that build directly toward the climactic season finale.
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Season 21 Episodes
Episode Guide
🛡️ SPOILER SHIELD
Season 21 Progress Shield
Future titles & synopses blurred. Tap "Reveal" on any card to peek.
S21·E7
Core
GameCenter CX on The Pacific Ocean: Arino's First Challenge on a Boat! (#243)
Jul 21, 2017 · 60 min
S21·E9
Core
The Great Detective Arino!? "Nishimura Kyōtarō Misuterī: Blue Train Satsujin Jiken" (#245)
Sep 8, 2017 · 60 min