The scenario for Dawning Subaru, and The Owl lurking in the twilight. is written by Momono Zappa, who won the 67th Edogawa Ranpo Award for the novel Roukou Zanmu. Character designs, CGs, and original images are handled by U35, who drafted the character designs for the TV anime The Aquatope on White. An authentic world of mystery depicted by Momono Zappa with transparent characters illustrated by U35 come together in this new visual novel! Additionally, the theme song is sung by Kanako Itou, who is known for her work on the theme songs for Higurashi When They Cry: Kizuna and STEINS;GATE. With its mysterious vibe and fast pace, paired with Kanako Itou’s vocals, the song is a key constructor of the game’s atmosphere.