Mai otome Nina, makareru... orz (2005– ) Online
Upperclassman Shiho's jealousy towards Nina reaches catastrophic heights, as she decides to sabotage the school's swimming pool during sports class. Once again, it's up to Arika and her friends to clean up the mess.
| Episode credited cast: | |||
 | Mika Kikuchi | - | Arika Yumemiya (voice) |
| Rest of cast listed alphabetically: | |||
| Kiyomi Asai | - | Miyu (voice) |
| Kumiko Higa | - | Irina Woods (voice) |
 | Akira Ishida | - | Nagi Dài Artai (voice) |
 | Junko Iwao | - | Akane Soir (voice) |
 | Katsuyuki Konishi | - | Sergay Wáng (voice) |
| Minami Kuribayashi | - | Erstin Ho (voice) |
 | Caitlynne Medrek | - | Mikoto (voice) |
| Mai Nakahara | - | Mai Tokiha (voice) |
| Mamiko Noto | - | Yukino Chrysant (voice) |
| Mitsuki Saiga | - | Chie Hallard (voice) |
| Ai Shimizu | - | Mikoto (voice) |