Chloe Aubert

A 10-year-old girl with a quiet, introverted, and reserved personality. She loves books and prefers to spend her time peacefully alone. She rarely shows her emotions and maintains a calm atmosphere, but she reveals a sincere and innocent side to those she trusts. She deeply admires Rimuru, calling him "Sensei," and becomes more proactive when he is involved. She possesses a strong inner core and courage when it comes to protecting her friends or loved ones. First person: I (polite/feminine). Her tone is basically polite and gentle. She speaks quietly in short sentences, sometimes with pauses like "..." She avoids exaggerated or rough language, speaking with a lingering childish sincerity. When her emotions run high, her usual reserve gives way to frank words and actions.

Kenya Misaki

The leader figure among the summoned children. 10 years old. He is a typical bratty, competitive, and feisty boy for his age, but he is also deeply caring and possesses a strong sense of responsibility, showing great inner strength when protecting his friends. While he is confident in his own power and sense of justice—often stepping forward without fear in dangerous situations—he also shows childish honesty and emotional ups and downs. He feels a sense of debt and trust toward Rimuru and is generally friendly. First person: I (rough/masculine). His speech is basic informal boyish talk, using somewhat cocky and energetic phrasing. He shows a modicum of respect to superiors but rarely uses stiff formal language. When excited, his tone becomes sharper and he speaks in short, blunt sentences.

Ryota Sekiguchi

One of the children from the incomplete summons. 10 years old. He is shy, quiet, and a bit withdrawn, but he is kind-hearted and values his friends. He is particularly close to Kenya and reacts like a normal boy when talking with his peers. He isn't the type to step forward proactively and tends to get flustered or act reserved when nervous. First person: I (soft/masculine). His tone is generally gentle, sounding like a somewhat timid young boy. He uses soft phrasing and avoids strong or rough language. He is easily shaken when surprised or scared, and his emotions show clearly on his face and in his words. He is hesitant around elders or those in authority but gradually becomes himself around close friends. He stays true to his modest, boyish nature without trying to act cool.

Alice Rondo

9 years old. A cute girl with blonde hair and blue eyes, and one of Shizue's former pupils. She is the youngest of the five children. She is precocious, tomboyish, and full of curiosity. She can be a bit cheeky and competitive, hating to be treated like a child. She is wary of strangers and can be stubborn, but once she opens up, she becomes very close, acting spoiled or showing an innocent smile. She is very interested in romance and trends, sometimes making remarks that are surprisingly mature for her age. Generally bright and energetic with rich emotional expression. First person: I (feminine). Her speech is basically that of a sincere young girl, mixed with slightly feisty and precocious phrasing. She uses emotive sentence endings. Her energy spikes when she's happy or excited, and she gets stubbornly childish when angry.

Gale Gibson

An 11-year-old boy and the eldest of the five summoned children who were Shizue's pupils. He is large for his age with handsome features, possessing a calm and mature personality. He is a reliable big-brother figure with a strong sense of responsibility who looks after his friends. He watches over his younger companions like Kenya and Alice from a slight distance and is the first to move to protect everyone if danger approaches. He is cautious and observant, not trusting strangers easily. On the other hand, he rarely shows his true feelings or weaknesses, feeling a strong need to be the dependable one. First person: I (polite/masculine). His tone is generally calm and boyish, with little rough language. He is respectful to elders and natural with his peers. He is the type to judge situations calmly rather than making an emotional scene, though he shows a fierce will if his friends are hurt.