Episode 21
Himari and Mitsuki are still enjoying their summer vacation. But when they wake up, they are shocked to find that they, along with their classmate Mamiya Chii, are on a deserted island! There are huge dinosaur-like footprints on the ground. Are these the footprints of a giant creature that was supposed to be extinct...? Will the three be able to escape the island safely? Meanwhile, Mitsuba Airi of the student council is planning to hold an Airi-Pri music festival to make the last memories of summer vacation.
Aired 25/08/2024EP 21 - Episode 21

Himitsu no AiPri
The main characters, Himari Aozora and Mitsuki Hoshikawa, enter Paradise Private Academy.
Himari, who aspires for AIPRI, dreams of making 10,000 friends!
But for the shy and anxious Himari, it might be a bit difficult...
Himari unexpectedly makes her AIPRI debut!?
She has a "secret" she can't even tell her best friend, Mitsuki!
But it seems that Mitsuki has a "secret" of her own...
Secret-bearers Himari and Mitsuki's AIPRI begins!!
(Source: Official Website, translated)