Aima would technically be considered one of the oldest competitors on the roster, if anyone truly knew what her age was. Since becoming a vampire long ago, Aima has no clue how long she has truly been around. At a point, she stopped caring to keep track. From what little she can actually remember at this point, she was once being courted by a rather wealthy man. Despite warnings from those around her that he would only use her for his own goals, Aima ignored such warnings and moved away from the life she knew previously to live a life of luxury with someone who she felt treated her correctly. It wasn't until after it was all said and done, that this man made his intentions clear. With one swift motion, Aima was turned into a vampire by the man, and only then did she realize the mistake she made. Feeling such intense emotions from such a betrayal, Aima used her newfound abilities to escape into the night, tears flooding her vision as she decided then and there that for the rest of time, she would never give another man the time of day.

Eventually, Aima found a stray building standing on the outskirts of a larger kingdom, that would then become her home, as she was forced to live a life in shadow. Direct sunlight became her primary weakness, as it causes her a great deal of pain and damage. The helpful part of being a vampire however, is that normal attacks against her are quite ineffective, and the only way to truly deal with her is to expose her to sunlight.

For hundreds of years it feels like to Aima, she has remained trapped inside her "home", a ruined building in the middle of nowhere that protects her from the sun. Early on into finding the place, Aima discovered the then dormant, but still somehow alive, Morana. The two quickly became friends and Aima took great pleasure in having a means of sustenance that was self-generating even if the blood didn't seem very fresh. Before long the two were visited by chance by a very royal looking woman, Camilla, who looked like the last kind of person they would ever see in a place like that. She told them of some kind of Arena, and the life of action she longed for. Aima and Morana, both rather bored of their current situation, decided to join her, as the three slipped out into the night, heading to the Arena.

Upon their arrival, Aima decided to select Camilla as her duo partner in the Season 3 Grand Ball Cup, where the pair would not advance to the playoffs. That didn't matter much to Aima however, she just enjoyed the time she was spending with Camilla, and getting to know her more over the course of the Season. Once the registration opened for the Boss Gauntlet teams, Morana, Aima and Camilla would register themselves as a trio called, The Countess Companions.

Excited to go on this journey with the two people she finds herself closest with, Aima was ready to fight alongside her team, but there was one issue. Due to the unique circumstances of each room of the Gauntlet having artificial sunlight based lighting, Aima would have had a difficult time helping her team. However, Camilla offered to Aima her favorite sunhat, that perfectly shields her from the light above. Keeping her safe from harm in battle from the sun, artificial or otherwise, though she is able to be injured within the confines of the Gauntlet. As of late, Aima just can't seem to get her mind off of Camilla. Her feeling she needs to suppress her vampiric tendencies when she is around her. While also being entranced whenever she looks into her eyes. Such conflicting feelings Aima finds herself needing to discard for now, as the bigger task at hand lies below. Far beneath the Gauntlet.