Yashi describes herself as the brutally honest yet mature member of the MoonStar Duo (Originally called the MoonStar Trio before the Ophelia incident) unlike the leader Mabel who is really sensitive and doesn’t like upsetting others, Yashi strives to not hide how she feels about others yet can also be so formal at the same time. She is on good terms with her leader Mabel Heartwhisper and often refers to her by her full name or Miss Heartwhisper. However she doesn’t get along with Ophelia.