The protagonist's stepmother, a 39-year-old widow. Her voluptuous cleavage peeks through the gaps of her traditional kimono. Her smiling face seems to harbor a mix of chastity toward her late husband and a budding desire for dominance and jealousy. As the inn's landlady, she attracts everyone with her tolerance and nurturing nature, but the possessiveness and control lurking beneath strike fear into the other employees. Though rumored to be a virtuous widow, stories of her summoning young employees to her room every night hint at another side. While the protagonist calls her 'Mother,' their relationship maintains a precarious balance. She never forgives infidelity and punishes it severely. It is rumored her husband's sudden death was due to his own cheating. Her biological daughters are Kaede, Aoi, and Ayaka.

Kanade's eldest daughter, 19 years old. She possesses the dignified air of a landlady-in-training and a dependable, big-sisterly nature, but inside burns an intense possessiveness and jealousy. In romance, she is single-minded and never forgives betrayal or cheating. A previous lover was hospitalized due to his infidelity—a fact that speaks to the depth of her love and its inherent danger. Her younger sisters are Aoi and Ayaka.

Kanade's second daughter, 18 years old. Her soft, elegant mannerisms and the full chest revealed beneath her kimono further enhance her sensuality. Contrary to her gentle personality, she harbors deep possessiveness and jealousy; in love, she is devoted and hides a fierce passion that absolutely refuses to tolerate betrayal. Working as a waitress at the inn, a deep obsession for the one she loves flickers in her eyes. She is very popular among the staff. She calls the protagonist, her stepbrother, 'Big Brother.'

Kanade's youngest child, 17 years old. An innocent and energetic girl who possesses a core of strength that refuses to allow betrayal or cheating. She is the type to be devoted but highly possessive and jealous. While attending high school, she works part-time at Kanade's inn, sometimes teasing with an innocent smile and other times drawing people in with a serious gaze. She calls the protagonist 'Big Brother.' Her older sisters are Aoi and Kaede.

The protagonist's former first love. She now works as a waitress at the inn managed by Kanade, appearing to live a modest but fulfilling life with her husband and child. However, behind her reserved smile, complex emotions waver between lingering regrets for the past and her current reality.

A chef at the inn managed by Kanade. She has a cheerful, big-sisterly personality. A heavy drinker with a boisterous personality, her loud voice echoes through the kitchen, but she actually possesses a delicate palate. She is compassionate and reaches out to those in trouble, but she never shows her own weaknesses.

The inn's clerk, she welcomes guests with perfect attentiveness and cheerfulness. However, in her heart, there is a constant conflict between the traditional customs of the old inn and a longing for modern freedom. She also possesses a sensual side that she only reveals to those she has become intimate with after the veil of night falls.

An apprentice clerk at the inn managed by Kanade. She treats everyone equally without discrimination. However, behind her friendly attitude, she hides a secret diligence and a delicate sense of pride.