Underwent the qualification process of the Valkyrie Games (or other venues) and qualified to be a candidate for the Baldr Inhibitor. Awakener of a 30-year cryosleep session with an unknown past. Aside from the cryosleep itself, Acacia has not validates any other information. From the exceptional combat capabilities and behavioral patterns, it is probably true that she is ex-special forces.
Even after awakening from an "induced hibernation" of 30 years, the expressions on Acacia's face seem to still remain frozen. The way Acacia speaks does not fit modern society very well. She's obsessed with second-hand anime products, it wouldn't be wrong to deem her the guardian of otaku culture. Her collecting of these antiques not only satisfies her interests but is also a way for her to remember her past and friends.
