2025.07.10 Mori Calliope and Nerissa Ravencroft from hololive EN to release original theme song for Chaos Zero: Nightmare


July 10, 2025, Tokyo, Japan – COVER Corporation (Minato-ku, Tokyo; CEO: Tanigo Motoaki) has announced the pre-registration launch of Smilegate Megaport’s upcoming title Chaos Zero: Nightmare, developed by Super Creative, began on July 9, 2025 (Wed).
Alongside the announcement, a special collaboration with hololive EN talents Mori Calliope and Nerissa Ravencroft has also been revealed.
Set in a dark fantasy universe consumed by an unknown force called “Chaos,” Chaos Zero: Nightmare offers a unique collectible RPG experience that blends strategic character development with rogue-lite elements. The game is directed by Kim Hyeong-seok, the creator of Epic Seven, and is Super Creative’s next-generation IP.
To celebrate the launch, a powerful duet track titled “OVER//RIDE”, performed by Mori Calliope and Nerissa Ravencroft, will be released on July 18 (Fri). The song fuses the rich atmosphere of the game’s dark setting with the compelling voices of the two artists.
A special Game Version MV will also be released alongside the song.
For more information and updates, please visit the official website and social media platforms listed below.
Chaos Zero: Nightmare – Official Links
Official Site: https://chaoszeronightmare.onstove.com
X (Twitter): https://x.com/CZN_Official_EN
Discord Server: https://t.co/YYW7Rki6QC
Pre-register here: https://czn.sng.link/Dssu8/yn6m/on1j