Kalinin, Andrei Sergeivich

Sagara's commanding officer and one of Tessa's military strategists, holding the rank of Lieutenant Commander and serving as Operations Director. He is also Sagara's foster father. He and Sousuke were once enemies, a fact mentioned by Sagara himself in a two-part episode. While his status as foster father may exist only on the school's official records, Kalinin is undoubtedly a very fatherly figure to Sagara. Kalinin formerly served in the Soviet special forces, the Spetsnaz, and led the team that discovered a crashed Japanese airliner. There was only one survivor: a three-year-old child named Sagara Sousuke. His wife is deceased, and the whereabouts and status of the rest of his family remain unknown. Speculation exists that Kalinin betrayed Mithril to Amalgam, based on his meeting with Leonard Testarossa at the end of the book 'Dancing Very Merry Christmas' and his mysterious disappearance and attitude during Amalgam's raid on Merida Island. Kalinin later appears in 'Tsudoku to Make My Day' at Leonard's villa, seemingly as one of Leonard's subordinates, although his subsequent actions in the book suggest the possibility that he may be working for the anti-Leonard faction of Amalgam, or as a Mithril deep cover agent.
Andrei mentioned that he had difficulty maintaining family ties, mostly with his wife, due to his time spent with the Spetsnaz. He seems to be the type of family man who loves his wife so much that he makes the Borscht (which Sousuke avoids at all costs) that his wife used to make for him upon his return from missions. He operates under the codename Perth 1.