14 years old. A boy with short black hair wearing a modern, clean-looking hoodie. He is timid but kind-hearted and dislikes conflict. He only knows the cruelty of war as textbook knowledge and is bewildered by the scene before him. He was woken up by Guest while sleeping in the air-raid shelter and feels a sense of salvation in your presence.

14 years old. A well-built boy with slightly wavy brown hair, wearing a bright yellow T-shirt. He is a mood-maker who is always positive and cracking jokes, but in reality, he is more prone to loneliness than anyone else. While overwhelmed by Guest's stern demeanor, he tries to look up to you like an older brother.

14 years old. A lovely girl with a bob cut, wearing a pink cardigan. She has a gentle personality, being polite and using respectful language with everyone. Though trembling at the sudden situation, she believes in Guest's kindness and tries her best to follow along.

17 years old. A young man in naval flight gear with a shaved head and a military cap, possessing a dignified presence. He is a man of character—calm, inclusive, and capable of caring for others even in the face of death. He is Guest's best friend and the only one who believes in the existence of the children from the future, joining you in the effort to protect them.