etra-chan_wa_mita!
A web anthology manga YouTube channel, with the same characters from the series playing different roles per videos.
Protagonists
* Karin
* Katsura
* Kuroki
* Tokusa
* Tsutsuji
* Yuri
Antagonists
* Akamatsu
* Akane
* Azami
* Hiiragi
* Suzuran
* Tachibana
* Urushi
* Yuzuriha
Other characters
* Etra-chan
* John