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Season 0 • 2014
1. Topple the Flag / Cat
An OVA bundled with the special edition of the fifth manga volume.
2014-01-04 • 13 min
2. School Camp
An OVA bundled with DVD box volume 1.
2014-05-28 • 14 min
3. Snow Play
An OVA bundled with DVD box volume 2.
