This OVA is divided into two parts. First one is about Torii Shoutarou following his younger sister on a date. Second one is about Christmas Eve, which Mitsuki, Yuuya and their friends spend at Kanzaki's house.
Bundled with the limited-edition volume 7 of the manga.
(Source: AniDB)+ More
Characters & Voice Actors

Torii, Moa
Main
Akesaka, Nanami
Supporting
Kanzaki, Kyouko
Supporting
Kiritani, Yukina
Supporting
Mei
Supporting
Neko
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