Darker than Black Watch Order poster
Anime Completed 2007-2010

Darker than Black Watch Order

Darker than Black in story order: season 1, the four Gaiden OVAs, then Ryuusei no Gemini.

Last updated September 17, 2026

Watch Order (Chronological)Recommended

0 / 3 watched

Season 1, then the bridging OVAs, then season 2. The OVAs released last but belong in the middle.

  1. 1 Darker than Black (Kuro no Keiyakusha) 2007 · series 25 broadcast episodes, April 6 to September 28, 2007, plus the DVD-only episode 26 from March 2008.
  2. 2 Darker than Black: Gaiden 2010 · ova 4 episodes, January to July 2010. Bridges Hei and Yin's story between the two seasons.
  3. 3 Darker than Black: Ryuusei no Gemini 2009 · series 12 episodes, October 9 to December 25, 2009. Shifts focus to the new Contractor Suou.

About Darker than Black

In a Tokyo reshaped by the appearance of Hell's Gate, emotionless Contractors with priced powers work the city's underworld, and the masked BK-201, Hei, hunts its secrets for the Syndicate. Studio Bones produced the series under Tensai Okamura with music by Yoko Kanno: 25 broadcast episodes aired from April to September 2007, plus a DVD-only 26th episode in March 2008.

The 12-episode second season, Ryuusei no Gemini, aired October to December 2009. Its four Gaiden OVA episodes came out on disc across January to July 2010 but take place between the two seasons, so watch them in the middle: season 1, Gaiden, then Gemini.

Good to know

This list uses chronological order, which differs from release order (the Gaiden discs shipped alongside Gemini home-video volumes). No sequel or remake has been announced, and the story stands complete. Some listings fold the DVD-only episode 26 into season 1's count, giving 26 instead of 25.