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ฤดูใบไม้ร่วง 2009 | 1 ตอน
Kazamatsuri Touma's favourite quiet cafe — where she reads recently bought books — will soon close, so she and Kageyama Torako look for another quiet place for Touma to read. Torako suggests the cake cafe nearby. And as it turns out the two girls really love the European cakes there, and can not resist trying them all out. (Source: AniDB)
ฤดูหนาว 2011 | 2 ตอน
Two short OVA of Hakuouki distributed to those who purchased all six volumes of the DVD. A fandisc game "Hakuoki Zuisouroku" and an official parody "Hakuoki SSL (a high school parody)" were animated.
ฤดูหนาว 2020 | 1 ตอน
ฤดูหนาว 2016 | 2 ตอน
Bundled with the 7th and 9th volumes of the Bakuon!! manga.
ฤดูร้อน 2016 | 2 ตอน
A new year arrives as the school festival ends. The season has come as Kaou-kai members leave their jobs after doing their final duties. Each musical team prepares for the final big performance for the year, Graduation Ceremony, to show their gratitude. After Itsuki Ootori left Kaou-kai during the school festival, the ex-Team Ootori is not qualified to participate while they are still students of the music department. In the midst of these events, Yuuta Hoshitani and the others make a decision... (Source: MAL News)
ฤดูร้อน 2014 | 3 ตอน
OVAs bundled with the 15-17th volumes of the Mushibugyou manga.
ฤดูใบไม้ร่วง 2012 | 1 ตอน
Short anime bundled with the 10th and final volume of the Hellsing Ultimate OVAs.
