Yōko Hikasa
The opening theme for the first season is "Straight Jet", performed by Minami Kuribayashi. The ending theme song is "Super∞Stream", with the first episode version sung by Yōko Hikasa, the second and third episode version sung by Hikasa and Yukana, the fourth and fifth episode version sung by Hikasa, Yukana and Asami Shimoda, the sixth and seventh episode version sung by Hikasa, Yukana, Shimoda and Kana Hanazawa and the final version for the rest of episodes sung by Hikasa, Yukana, Shimoda, Hanazawa and Marina Inoue. Each version of the song reflects the voice actresses' character who is running with Ichika in the episode's ending credits.