转载自Nyaa，我只代表我自己感谢原发布作者！

There is Earth, the familiar world, and then there is the Black World, a parallel dimension that very few people are aware of. For centuries, a pact between the two worlds has been observed to maintain peace, and terms must be negotiated and renewed soon to continue relative harmony.

This time around, there is a militant faction that will stop at nothing to prevent the signing of a new treaty for inter-dimensional peace. Two agents of the elite organization known as the Black Guards — defenders of the balance between the two worlds — are charged with ensuring the success of the treaty. … source anidb

Encoded from the JP BD. Dual Audio: Japanese (2.0 FLAC), English (5.1 DTS-HD Master Audio). I miss the old violent demon anime like this one and Demon City Shinjuku. They don’t make 'em like this anymore.

DDL

I would appreciate any help seeding.