From the Red Fog manga volume 4 features story and art by Mosae Nohara.

After stumbling upon the secret of the research facility, Ivan’s narrow escape leaves him in a quandary. Doubting Midwinter and the other members of the Organization, Ivan turns to Ruwanda for help. But Ruwanda does nothing for free...and so Ivan is enlisted in Ruwanda’s quest to find his mother. Can they survive the Organization and discover the truth behind what happened to her?!