Darker than Black (Seasons 1–2)

Darker than Black (2007) is a Japanese anime series blending sci-fi and noir you can watch online on iFILM. A decade ago something cracked open above South America and Tokyo: the real stars went dark, replaced by artificial ones, and a massive anomaly called Hell's Gate sealed off part of the city.

In the fallout, certain humans became Contractors — people with lethal abilities who pay a compulsive toll each time they use their power. Hei, voiced by Hidenobu Kiuchi, moves through Tokyo as an unremarkable Chinese student. By assignment he turns into the Black Reaper, a masked operative who works for the shadowy Syndicate and goes up against spies from half a dozen nations all hunting the same secrets around the Gate.

Produced by studio Bones, the series runs in self-contained two-episode arcs that gradually expose a larger conspiracy. The mood is closer to cold-war thriller than typical action anime — methodical, low-lit, and genuinely tense. Stream Darker than Black (2007) online on iFILM.