Atsushi is the poison-type fairy of The Bloxington Fairies, the fairies that serve to protect Bloxington from danger. She is the oldest of the three fairies. She's a pretty mysterious individual, but she is insightful and empathetic who possesses a deep understanding of how others feel and what motivates them. She's drives by her values and is dedicated to making Bloxington a better place as one of the fairies of Bloxington.

Please refer to this video to see what Atsushi sounded like from her old voice actor to try to match it (check timestamps 7:33 and 8:43): https://www.youtube.com/watch?v=XoDHNVM_MXk&t=873s