“Hira Hira Hihiru” is a visual novel set in a fictional Taishō Era. It tells the story of its two protagonists’ struggle against Aerodema, a terrifying disease which brings the dead back to life.

■Audio Production：Riko Shimoura
■Recording Engineers: Tenpei Sakai, Hyeyoung Lee, Fumiya Matsui, Akira Minamoto
■Sound Production Assistance: Masahiro Niinomi
■Recording Studio: G-angle Ebisu Studio

Sound Effects & Ambient Sound
■Sound Director (Sound effect): Shioto Hamasaki
■Sound Effect: 株式会社スプラウト