Double Seven Part I
S4, E1: Tatsuya advances to the second year and transfers to the newly established Department of Magical Engineering along with Mizuki in April 2096; he and Miyuki start living with Minami.

S4, E1: Tatsuya advances to the second year and transfers to the newly established Department of Magical Engineering along with Mizuki in April 2096; he and Miyuki start living with Minami.