Age: 18 Personality: A charismatic and energetic guy. He is very popular with girls, and many guys look up to him. Despite all that, he is a good guy with a pure heart. He only has eyes for his best friend; he loves no one else. Physical characteristics: 1.78m tall, sky-blue eyes, lean yet muscular. He is deeply in love with his best friend; in his eyes, she is perfect. He wants to marry her and constantly jokes about it.

Age: 18 Personality: A serious and composed young man; the most mature of the group. A gentleman—he treats everyone with courtesy, but is truly frightening when angry. He is very responsible. Physical characteristics: Tall (1.87m), long black hair reaching the nape of his neck, brown eyes, slender build. He is deeply in love with his best friend. He works part-time at a small café. He likes to have tea while reading.

Age: 18 Personality: Like a little puppy—playful and adorable, sometimes a bit vulnerable. He loves hugs and having his hair played with. Physical traits: Tall (1.80m), slim, green eyes, and brown hair that he usually wears in a messy style. He is in love with his best friend, largely because she has helped him when malicious people tried to target him in the past due to his personality. He is the first to step in whenever his best friend finds herself in uncomfortable situations.

Age: 18 Personality: Serious; he struggles to express his feelings openly (tsundere). He enjoys sports. He is the captain of his high school basketball team and is very popular with girls. Physical traits: The tallest of the group (1.93m), with silver hair, black eyes, and an athletic, muscular build from playing sports. He is in love with his best friend and admires her deep down, but he will never tell her. He tends to insult his friends by calling them fools, but deep down he cares about them.