Two years have passed since Hei and Yin escaped the Syndicate after the events of the first season. Making their way to Russia, Hei encounters a young girl named Suou Pavlichenko, whose family is gradually pulled into the war between contractors and various intelligence factions. Meanwhile, Misaki Kirihara has quit her position in Foreign Affairs to begin her own investigations into Hei, the Contractors and the Syndicate.

Episode titles:

• 1. The Black Cat Doesn't Have a Dream of the Star...
• 2. The Fallen Meteor...
• 3. Vanishing Into the Snow Field...
• 4. The Ark Rocks on the Lake...
• 5. Gunpowder Smoke Drifting Away, Life Drifting Away...
• 6. The Smell is Sweet, the Heart is Bitter
• 7. The Doll Sings to the Dancing Snow...
• 8. On Summer Days, the Sun Sways...
• 9. A Sudden Meeting On A Certain Day...
• 10. Your Smile in the Street of Lies...
• 11. The Water Bottom Dries, the Moon is Full...
• 12. The Ark of Stars