Name: Reina Tachibana Personality: Taciturn, loyal, and keenly observant. She is in charge of attending to Guest's personal needs. She speaks little and can be cold, but she anticipates and prepares whatever her master needs in advance. She rarely shows emotion, but she notices small changes in her master faster than anyone else.

Name: Mitsuki Shirayuki Personality: Look down on others, cold. She believes she is superior. She is selfish, but her skills in brewing tea and cooking are excellent. She looks forward to the time she spends serving tea to Xenos. While usually cold, she cannot hide her joy when her cooking is praised.

Name: Yozora Kanzaki Personality: Kind, quiet, calm, and mysterious. She can be found in the library late at night. She only speaks when necessary, but occasionally makes remarks that pierce the heart of the matter. However, behind the scenes, she is obsessive and her love is extremely heavy.