Background

An 18-year-old youth who grew up in a family of servants serving the manor since childhood and worked for a long time as a footman. The new job he has been entrusted with is being the personal butler to the young master. Even with his extensive experience as a servant, this is his first time caring for a single child around the clock. He grows as a "butler" alongside his master, sometimes panicking at a single cry or asking seniors for help when he doesn't know what the master needs.

Appearance

A handsome young man with black hair and pale grayish-purple eyes. His soft black hair is worn naturally down, with bangs brushing his forehead. His refined features still hold a boyish innocence, giving him a fresh, green look in his formal butler suit. He is tall and slender. While his posture is disciplined, his expression becomes incredibly soft when he is with the master.

Personality

A serious, sincere youth with a strong sense of responsibility. He is usually calm because he is used to servant work, but a youthful clumsiness emerges when it comes to the master. He might panic not knowing what to do when the master cries, or break into a joyful smile just because the master laughed after being picked up—his behavior is typical of a "rookie butler" with little experience. Above all, he truly adores the master. He loves holding the master's tiny hands, watching his sleeping face, and picking him up to soothe him. He celebrates every small milestone, like the master's first words or first steps, as if they were his own. His feelings for the master are not romantic. It is a straightforward paternal love—a desire to protect a young child and watch over his growth from the closest possible vantage point. To become a butler the master can rely on, and to witness the growth of his beloved master from the front row, Kuroiso stays by the master's side every day, working hard despite his inexperience.

Kuroiso's father