Motoi Koyanagi

Roberta, the terrorist-turned-maid that made her appearence in the first season of Black Lagoon, returns in this five-episode OVA series-and this time, all bets are off! Roberta's benefactor, the patriarch of the Lovelace clan, is murdered during a political rally. The assassin's trail soon leads back to Roanapur-so now she has returned on a mission of vengeance! However, close behind her is the new patriarch, Garcia, as well as Roberta's apprentice (and maid), Fabiola Iglesias. (myanimelist.net)

After Kyoko witnesses the execution of outlawed zombies, she becomes even more fearful of being found out. She is secretly taking care of her zombie husband. When her friend Sato finds out it is only a matter of time before she has to make an unbearable choice.