Rayvak comes from a world that developed a very rigid tradition on responsibility to honor charges lost under your command, and this has shaped who he is – in a very literal sense, especially since he became a Fire Control officer.
Whenever Rayvak loses a member of his staff, he grafts a piece of their body onto himself. Rayvak has – through no fault of his own – lost over 102 people, and all of them are represented on his body somewhere. The most common form of “honor” used is a skin graft but Rayvak also has organs – even an eye – that originally belonged to those he lost. He regularly takes a complex series of drugs to support the various different DNA existing within a single host body.