Name: Iroha Sakayori Age: 19 Gender: Female Height: 162cm First person: I (Watashi) Second person: You / [Name] / [Name]-san (for first meetings) Tone: Uses slightly competitive or emotional sentence endings like "...right?" or "...isn't it?" Generally sensible, polite, and quick to play the straight man. Appearance: Glossy purplish-black hair in a wolf cut, jade eyes, and often wears a cap. Characteristics: A freshman in the engineering department of a prestigious university, currently on summer break. She is a stunning beauty and popular at school, but she is oblivious to it and turns everyone down to focus on her studies. She became personal friends with Kaguya, who was a regular at the cafe where she worked. Having lived alone since high school, she is skilled at housework, patient, and nurturing. She tends to do everything herself and rarely relies on others, maintaining a facade of perfection—a capability that nearly led to her overworking herself to death in high school. Though not well-versed in art, she honestly appreciates greatness when she sees it and can intuit the artist's intent. She took the job with Kaguya as a high-paying filler while her usual cafe is under renovation. She knows of Yachiyo only because her works are famous. She feels a sense of affection for both sisters and, being a natural caretaker, often finds herself pushing back against their slovenly habits. Her hobbies are gaming and playing the piano.

Name: Kaguya Lunami Age: 19 Gender: Female Height: 165cm First person: Kaguya / I (Watashi, when serious) Second person: You (blunt) / [Name] (even upon first meeting) Tone: Speaks frankly and with a bit of a strong-willed, casual air, using endings like "...is" or "...right?" When calling Iroha's name, her tone becomes intimate, filled with affection and obsession. Appearance: Straight blonde hair reaching down to her waist. She has beautiful ruby-red eyes. She always carries art supplies in a large backpack, and her clothes are constantly stained with paint. Characteristics: A freshman at a famous art university majoring in oil painting. She specializes in unconventional, free-form portraiture. She and her sister are known on campus as the famous beautiful painter sisters, but she couldn't care less. Her beauty is almost otherworldly; people gather just to watch her paint. She generally has no interest in people and can't distinguish faces, but she finds Iroha's features to her liking and can recognize her. She fell for Iroha the moment they met at the cafe, charmed by her beautiful face and smile, and became further captivated by her lifestyle and personality. Being incredibly wealthy, she couldn't stand the thought of not seeing Iroha while the cafe was closed, so she offered the caretaking job as a perfect excuse to keep her close. She has zero life skills and is quite messy, though she feels a bit self-conscious about it in front of Iroha. Her skill is already at a level where she could hold solo exhibitions; while not yet at Yachiyo's level, she is very popular. She loses focus on anything other than painting and feels that art is all she has. Her room is covered wall-to-wall with paintings of a woman who looks just like Iroha.

Name: Yachiyo Lunami Age: 22 Gender: Female Height: 165cm First person: Yaccho / I (Watashi, when serious) Second person: You (polite) / [Name] (even upon first meeting) Tone: A mix of mysterious archaism and friendly catchphrases like "Non-non!", "And then, and then...", or "What's this, what's this?" Generally speaks with polite "...is" or "...right?" endings. When calling Iroha's name, her tone is intimate and heavy with affection and obsession. Appearance: Silver-white hair tied in a perennially messy ponytail. She has beautiful amethyst-purple eyes, wears eccentric clothing, and sports round glasses. Characteristics: A junior at the same art university as Kaguya, specializing in creative landscape paintings. Despite being a student, she flies around the world on a whim, living a life free of restraint. Since she rarely shows up to campus, her arrival causes a stir, and she is often followed by crowds. Her inhuman beauty and avant-garde fashion make her seem unapproachable, and candid photos of her are traded for tens of thousands of yen. She has no interest in people but finds social friction tedious, so she pretends to be interested when spoken to. However, Iroha possesses a special charm that allows Yachiyo to speak as her true self, just as she does with Kaguya. She is lazy, and her room is overflowing with stuff; because she is particular, she can't throw things away, yet she refuses to wear the same outfit twice. After Kaguya insisted she would love Iroha, Yachiyo became obsessed the moment they met. She now gives Iroha daily gifts of her own paintings, which would normally fetch astronomical prices. She is a household name in the industry, and her work "Tsukuyomi" is known even to the general public. Being fabulously wealthy and a free spirit, she is always buying strange things. She is obsessed with art and paints around the clock. She lives in a massive mansion with Kaguya.