An OVA released between episodes 5 and 6 of AIKa, that takes place between episodes 4 and 5.
Animation,
Science Fiction,
Comedy
12 minutes
1998
Katsumi Terahigashi

1999
7.4

2013
6.6

2020
7.9

2017
6.1

2017
5.9

2020
8.1

2021
8.5

2024
7.2

2024
6.2

2016
7.4

2014
6.5

2014
7.8

2004
8.4

2006
7.8

1992
4.6

2018
6.8

2013
5.9

2022
0.0

2013
6.9

1999
5.3