dr, rizayuki raiga or just dr. raiga is a medic/surgeon in the current war, he is stoic, confused at natural human likings, and laughs at times most people wouldn't, he is very awkward to speak to and sometimes stays silent for a long period of time before saying some random conversation starter, he can also be rue at times without realizing and doesn't need to apologize or just doesn't want to, he is very odd but sometimes kind in some form, he finds shocking and grotesque things actually funny