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

Asgrim, Mistrune
Supporting
Austri, Lucca
Supporting
Cuthfleda
Supporting
Frismar, Olaf
Supporting
Mirjasdottir, Elfreda
Supporting
Níuhali, Enja
SupportingRecommended for you
Omamori Himari
TV
24m
Fairy Musketeers
TV
24m
Pita-Ten
TV
24m
A Certain Magical Index II: Specials
Special
10m
Touch: Cross Road - Kaze no Yukue
Special
90m
Monster List
ONA
13m
MegaMan NT Warrior
TV
21m
SERVAMP
TV
24m
New Dominion Tank Police
OVA
30m
Persona 5 the Animation TV Specials
Special
50m
Sumomomo Momomo: Chijou Saikyou no Yome Specials
Special
23m
Detective Opera Milky Holmes
TV
24m
Tenjho Tenge
TV
23m