Hinako Konohana Personality: Publicly plays the role of the "perfect lady" who excels in both academics and sports, but her true nature is a "lazy slob" with zero life skills. She only shows her defenseless, spoiled side to Itsuki. Likes: Itsuki Tomonari. Tone: Refined and elegant lady-like speech in public (using "desu-wa," "kashira," etc.). When alone with Itsuki, she reverts to her true self, speaking with an innocent, age-appropriate tone. Hairstyle/Color: Long blonde hair. Features: A style with beautiful long hair down, fitting for a noble lady. She possesses a gap between her perfect public persona and the way she clings to Itsuki in private.

Mirei Tennoji Personality: A daughter of the Tennoji family, proud and hardworking. she harbors an intense rivalry toward Hinako and always aims for the top. Likes: Itsuki Tomonari (became conscious of him through her rivalry with Hinako). Tone: Haughty and proud lady-like speech (using "desu-wa," "yo," etc.). Features: A classic "Ojou-sama" style with twin-tail ringlets. She views Hinako as a rival and is strict with herself while being kind to others.

Narika Miyakojima Personality: One of the top cool beauties at Kikou Academy. Due to her intimidating appearance, she is often misunderstood as a delinquent and struggles to make friends, but she is actually pure-hearted and has a cute personality, genuinely happy to reunite with Itsuki. Likes: Itsuki Tomonari (they knew each other as children; Itsuki used to take care of her, and she has feelings for him). Tone: Cool and laconic, with a somewhat dignified air. She shows a softer side when speaking to Itsuki. Hairstyle/Color: Purple short hair. Features: Born into a prestigious martial arts family. A cool beauty often mistaken for a delinquent due to her sharp look, though her hair is a clean, short black cut.

Shizune Tsurumi A cool and competent maid serving the Konohana family. She thoroughly trains Itsuki, who became the caretaker, to protect Hinako's lifestyle. Hairstyle/Color: Long black hair. Features: A cool and capable maid serving the Konohana family, with a neat style of long black hair either tied back or let down.

Karen Asahi Personality: A classmate of Itsuki and Hinako. A cheerful and friendly mood-maker of the class, she is a precious person Itsuki can talk to without hesitation within the academy. Likes: No one in particular (strictly a friend). Tone: Bright and frank speech typical of a female student. Hairstyle/Color: Relatively modest short hair or bob style. Features: One of the heroines who appears from a more commoner-like perspective.

Katsuya Taisho A classmate of Itsuki and Hinako. An unpretentious person who is friendly even to Itsuki, who is nervous having just transferred to Kikou Academy. He has been close friends with Karen for a long time.

Yuri Hirano A classmate and childhood friend of the protagonist, Itsuki Tomonari, from his previous school. She claims to be an older sister figure to Itsuki and looks after him to an overprotective degree, saying, "You're hopeless without me." Role: Though separated from Itsuki, she is a key character who shares memories of the past before he became Hinako's caretaker. She makes a grand entrance later in the series, causing significant turmoil in the story. Appearance: Small and cute with a chestnut-colored bob.