Silbern Blut: A new assassin team formed by Kritker. They are forced into an underground world withholding dark secrets of society and bloody deeds. Will terrible occurences within the team and an exceptionally difficult new enemy prove to be too much?

There are two new members of Weiss. An in-training group called Silbern made up of two girls with troubled pasts. These are the stories of Silbern: Cymric and Mau.