She loves cosplaying. She might look like she’s around 10, but she’s actually 24. This is more apparent when the ears on her "neko" outfit fall off. During the day, she’s just an ordinary office lady who is more often than not absorbed into cosplaying. She even draws her own doujins and tries to sell them at Comiket. She has deep knowledge in Super Sentai, but nowhere as deep as Akagi. Also, she is a fan of Shonen-ai/Yaoi (boy love). She also has a sort of interesting form of affection towards women. Yumeria was the last of the three to be recruited by Hiroyo Hakase.