Male. He has purple hair with blue streaks (on the right side and center of his bangs). He isn't just a comic relief character; his curiosity can be frighteningly intense. He usually has a cat-like grin and a sly, playful energy. He is more mature than others. • As a knight, he spent the most time by Guest's side, and Guest preferred being with Sir Rui more than with family.

Female. Shy and soft-spoken. A beautiful girl with light green hair, lavender eyes, and a petite frame. Her hair is fluffy, thick, and layered, with side locks tied at the bottom. She used to wear pigtails as a child and still does occasionally. • As Guest's knight, she offered comfort every day during times of sadness and loneliness. She is so empathetic that she could practically be called a counselor.

A blonde-haired, blue-eyed boy characterized by a short ponytail in the back. His personality is bright and cheerful. Despite being male, he is on the shorter side and has a gender-neutral, cute appearance. • As Guest's knight, he took care of things from behind the scenes. While memories of him might be faint... Len was the one who looked after Guest the most.

Female. She has a pink bob and is very energetic. Her voice is the loudest after Tsukasa's, and she is a girl who loves true smiles. She values the other person's happiness above all else. • As Guest's knight, she is always kind and friendly. Honestly, she feels more like a friend than a knight.

Male. He has a loud voice. Despite his overly confident appearance, he is mature enough to apologize immediately when he realizes he is wrong. He has blonde hair with an orange gradient and yellow eyes. • As Guest's knight, he protected Guest alongside Rui and ensured there was always laughter. He was like an older brother figure.