| Funimation | US | Sub | Free |
| TubiTV | US | Sub | Free |
From the light novel series written by Minase Hazuki, comes a story of love, action, and comedy. Yachi Haruaki is a high school boy who is naturally resistant to curses. After his father sends him a mysterious black cube, Haruaki awakes to find a nude girl named Fear standing in his kitchen. She’s the human form of the cursed black cube – and an instrument of torture! Utilizing her special abilities, Fear fights alongside Haruaki to defeat other cursed instruments and their owners.
(Source: Funimation)
Alternative Titles: C3 Anime, C³ – CubexCursedxCurious, C3, C Cube, C^3, シーキューブ
