Darker than Black: Gaiden Episode 1 English Dubbed
Darker than Black: Gaiden Part 1.
After defeating a group of Contractors, Hei and Yin pose as a recently married couple to hide in an inn. As they spend their time, Hei meets a woman who reminds him of Amber. She eventually turns out to be a Contractor who seeks Hei's death. During their fight, Yin intervenes forcing the woman to kill herself.