The OVA Astaroette no Omocha is a three part short story series. In the first story, Lotte and Asuha find themselves searching for details about their school project. In the second bit, is the backstory to how Zelda came to be Lotte's bodyguard. The final of the three, is a flashback of how the queen met Naoya and how they conceived Asuha ten years prior to the events in the anime.
(Source: ANN)+ More
Characters & Voice Actors

Touhara, Asuha
Main
Tamura, Yukari
Japanese
Touhara, Naoya
Main
Satou, Rina
Japanese
Ygvar, Mercelida
Main
Minaguchi, Yuko
Japanese
Ygvar, Astarotte
Main
Kugimiya, Rie
Japanese
Asgrim, Mistrune
Main
Matsuki, Miyu
Japanese
Austri, Lucca
Main
Hatano, Yui
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