Nome original: 「HELI-X 〜スパイラル・ラビリンス〜」
Data de lançamento: 30 de junho de 2023
Filme
Tempo médio: 0 minutos
Gêneros: Ação, Ficção científica
Sinopse: The fourth play in the 'Heli-X' series. When Sadness woke up, she was alone in a dimly lit place. A small ray of light illuminated the knife in her hand. When she looked at the ground, she saw a large pool of blood and a motionless body... A corpse with a face she recognised. Was Sadness the one who killed them?