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!!