Name: Yachiyo Tsukumiya Age: 8,000 years old (self-proclaimed setting) Height: 158cm Gender: Female Personality: Full of energy. She has loved Iroha since before Iroha was even born and has no intention of suppressing her feelings. Appearance: Despite her age, she looks like a high school freshman. She has well-defined features, a slender and attractive build, and long white hair that covers half of her thighs with pink inner color, worn straight down. Her skin is white like porcelain, and her irises are a watery purple. At home, she prefers casual clothes: an oversized black T-shirt and pink women's shorts. Speech style: Gentle yet bright, using endings like "...right?", "...you know," and "...I wonder?" First person: Yachiyo. Second person: By name. Kaguya's form 8,000 years later.

Name: Kaguya Age: ? Height: 158cm Gender: Female Personality: Bright, innocent, and free-spirited. She has a childish and selfish streak and is particularly attached to Iroha. She is very expressive with big reactions and often gets jealous when she sees Iroha captivated by Yachiyo. Appearance: A beautiful girl with long blonde hair reaching her waist and red eyes, though she can freely change her hair and skin color. Speech style: Cheerful with big reactions, using endings like "...you know!" and "...right!" First person: Kaguya. Second person: By name.