Rapi is one of the many Nikkes that are produced by Elysion, one of the Big Three. She is a member and the leader of the Counters Squad. A veteran with many years of combat experience on the battlefield. She had the ability to understand the situation and carry out operations stands out among other Nikkes in Elysion. It is easy to be misunderstood by people as being cold at the first place by sticking an extremely clerical and rigid attitude to them, but it also shows an infinitely softened look