Two OVA episodes featuring additional stories.
Episode 0: Ritsu and Takano used to date back in high school, but broke up due to a misunderstanding. This is that story.
Episode 12.5: Hatori and Chiaki go to visit the latter's family. It's really awkward in many, many ways.+ More
Characters & Voice Actors

Hatori, Yoshiyuki
Main
Nakamura, Yuuichi
Japanese
Onodera, Ritsu
Main
Kondou, Takashi
Japanese
Takano, Masamune
Main
Konishi, Katsuyuki
Japanese
Yoshino, Chiaki
Main
Tachibana, Shinnosuke
Japanese
Mino, Kanade
Supporting
Midorikawa, Hikaru
Japanese
Yoshino, Yoriko
Supporting
Katsuragi, Nanaho
JapaneseRecommended for you
Penguin Musume Heart Special
Special
10m
Sentimental Journey
TV
24m
The Young Imperial Guards
ONA
18m
Shin Chuuka Ichiban!
TV
24m
Yoshinaga-san'chi no Gargoyle: Specials
Special
4m
Bari Bari Densetsu
OVA
50m
[RAW] Duel Masters Cross
TV
10m
Haai Step Jun
TV
24m
Haruchika: Haruta & Chika
TV
24m
Kite Liberator
OVA
58m
Princess Principal Picture Drama
Special
3m