S1·E21 Sparkling Ocean and Blue Friends (2)
Core
Aired August 24, 2025
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Frequently Asked Questions
When did Season 1 Episode 21 of Koupen-chan air?
Season 1, Episode 21 ('Sparkling Ocean and Blue Friends (2)') originally aired on August 24, 2025.
How long is Season 1 Episode 21 ('Sparkling Ocean and Blue Friends (2)')?
The episode follows the standard broadcast runtime for Koupen-chan.