Astral is contacted by Kei Isurugi, a member of the school of OnmyĹŤdĹŤ that Nekoyashiki once attended, to perform a ceremony at a mountain. Itsuki accompanies Nekoyashiki and Mikan, but they are attacked by Kei during the ceremony. Kei remarks that he lost his sister, Sakuya Isurugi during a similar ceremony three years prior because Nekoyashiki left the school at the time to take Mikan to Astral. Nekoyashiki challenges Kei to a personal duel, and Itsuki upholds this, stopping the arriving Honami and Adilisia from interfering. Despite Kei's use of kuda-gitsune, Nekoyashiki manages to defeat him, with Kei pleased that he was able to pose some level of challenge for Nekoyashiki, his idol at the school. As Kei lies in defeat, Nekoyashiki reminisces on his last experience with Sakuya as the group watches an aurora in the sky.
Daisuke Ono
Kagezaki
Rie Kugimiya
Mikan Katsuragi
Mikako Takahashi
Adilisia Lenn Mathers
Jun Fukuyama
Itsuki Iba
Kana Ueda
Honami Takase Ambler
Junichi Suwabe
Ren Nekoyashiki
Shizuka Itoh
Manami Kuroha
Katsuyuki Konishi
Sekiren
Yuhko Kaida
Daphne
Fuyuka Ono
Itsuki Iba
Kaori Nazuka
Lapis
Hiroki Yasumoto
Judaicus Tholoide
Risa Mizuno
Diana
Akemi Okamura
Shinogi Minagi
Yumiko Kobayashi
Moroha Minagi