この中に１人、妹がいる！

能登有沙

Maiko Kotori (voice)

Rikiya Koyama

Kumagoro Mikadono (voice)

Aya Hisakava

Kanoko Mikadono (voice)

Takahiro Sakuray

Mikadono Shogo (voice)

Rina Hidaka

Mei Sagara (voice)

Kaori Ishihara

Konoe Tsuruma (voice)

大亀あすか

Mana Tendou (voice)

川澄綾子

Risa Seri (voice)

Ayana Taketatsu

Rinka Kunitachi (voice)

Yui Ogura

Yuzurina Houshou (voice)

Ami Koşimizu

Ikusu Mizutani (voice)

Ayane Sakura

Miyabi Kannagi (voice)