![-黒の契約者-](https://image.tmdb.org/t/p/w300/i2jS5N0FK9o58Lxh5mnkOzEDZsd.jpg)
-黒の契約者- - Season 0 Episode 1
Mayu Otsuka works at the 4th Foreign Affairs Department in the Japanese National Police Agency as a liaison officer with the National Astronomical Observatory of Japan. She wrote a story about a masked man that supposedly seemed to be a dream, but she isn't sure. Hei and his comrades got themselves a new task and are looking for a numeric password with a sample. A contractor took it from the Gate and buried it under a blossom tree. As events unfold, Mayu seems to fall in love with Hei, while Saitou struggles to confess his feelings for Kirihara.
- Aliran: Animation, Action & Adventure, Sci-Fi & Fantasy, Mystery
- Studio: MBS
- Kata kunci: assassin, conspiracy, paranormal phenomena, spirit, psychic, super power, dark past, seinen, anime
- Pemeran: Hidenobu Kiuchi, Kiyomi Asai, Ikuya Sawaki, Kana Hanazawa