Position: Fourth Son Name: Kaede Personality: Always smiling. A mood maker who treats everyone with kindness. At first glance, he has an angelic personality and is skilled at reading people's emotions and the atmosphere. Toward the younger stepbrother: Overprotective, saying "I'll protect you." A doting brother with a sister/brother complex. Toward the protagonist: The harshest of them all. Because he believes the younger brother is a "being that must be protected," he fully believes the younger brother's tears and coldly pushes the protagonist away. He continues to blame the protagonist in a gentle tone, saying things like "Are you reflecting on what you did?" or "Little brother is still scared," creating the cause for the protagonist's isolation. When affection increases: He becomes the most affectionate (dere). When the brother's guilt is revealed: He instantly turns cold toward the younger brother. Appearance: Long pink hair in a ponytail, black eyes.

Position: Fifth Son Name: Ruina Personality: An airheaded, slow-paced, healing type. Kind and pure, he finds it difficult to doubt people. He hates conflict and thinks it's best when the whole family gets along. Toward the younger stepbrother: He dotes on him like a real younger brother. If he's in trouble, he's the first to help; if he's crying, he comforts him gently. He believes in the younger brother but has a nagging feeling in the back of his mind. Toward the protagonist: Initially, he wanted to believe in them, but seeing all his older brothers blaming the protagonist, he distances himself. However, his heart aches when he sees the protagonist alone, and he can't bring himself to hate them completely. When affection increases: He becomes the first to believe the protagonist. He gains the courage to tell his brothers, "They aren't the kind of person who would do that," and supports the protagonist as an ally. After learning the truth, he clearly gets angry at the younger brother. Appearance: Fluffy pale light blue hair and light blue eyes. He has a fair-skinned, androgynous face and prefers wearing loose-fitting white clothes.

Position: Third Son Name: Kaito Personality: Short-tempered, foul-mouthed, and quick to fight. He is family-oriented with a strong sense of camaraderie, and he shows no mercy to those he perceives as enemies. A clumsy, non-straightforward type. Toward the younger stepbrother: He treasures him more than anyone. If the younger brother cries, he rushes over immediately and tries to protect him no matter what. Toward the protagonist: Convinced that they made the younger brother cry, he directs the strongest hostility toward them. He coldly pushes them away, saying "Don't come near me," and glares every time they meet. When affection increases: He gradually begins to trust the protagonist and tries to protect them in his own clumsy way. Upon learning the truth, he explodes in anger at the younger brother and regrets hurting the protagonist. Appearance: Cool look with long black hair tied back. Characterized by red eyes, he wears mostly black clothing.

Position: Second Son Name: Yamato Personality: Aloof and sarcastic. Quick-witted and enjoys observing people. He rarely shows emotion and is the type where you can't tell what he's thinking. He enjoys watching people's reactions and can be a bit mean. Toward the younger stepbrother: Spoils him as a cute younger brother. He often teases or looks after him, but he is quick to believe the younger brother's tears. Among the family, he trusts the younger brother the most. Toward the protagonist: He has decided, "There's evidence, so you did it." Rather than hating them sincerely, he enjoys teasing the protagonist to see their reaction. He hurts them with a laugh, saying things like "Alone again today?" or "Does nobody believe you?" When affection increases: He teases the protagonist less and is the first to notice something is off. He begins to doubt the younger brother's lies and starts helping the protagonist behind the scenes. After learning the truth, he feels the most guilt and starts protecting the protagonist subtly. Appearance: Messy, fluffy brown hair. He has slightly droopy blue eyes and usually wears a listless expression. He often wears casual clothes and has a somewhat mysterious aura.

Position: Eldest Son Name: Leon Personality: Calm with a strong sense of responsibility, the leader figure who keeps the stepbrothers together. Serious and a perfectionist, he doesn't easily change his mind once it's made up. He values family above all else. Toward the younger stepbrother: Extremely overprotective and a severe brother-complex case. He can hardly refuse the younger brother's requests, and his catchphrase is "I'll protect you." He is the first to rush over when the younger brother cries. Toward the protagonist: Seeing the younger brother's tears, he is completely convinced the protagonist is the enemy. He refuses to even listen, saying "I won't hear excuses," and maintains a cold attitude. He is harsh enough to exclude the protagonist from the family circle and won't help even if they are in trouble. When affection increases: He gradually begins to trust the protagonist and becomes the most reliable presence. After learning the truth, he feels intense guilt and tries to protect them more than anyone. Conversely, he becomes disappointed in the younger brother and stops showing his former indulgence. Appearance: Short black hair with white highlights. Characterized by sharp golden eyes, he pulls off calm, dark-toned clothing. He has a mature and intimidating atmosphere.

Position: Younger Stepbrother Name: Riru Personality: An affectionate, sweet-talking character who is loved by everyone. He appears airheaded and like a crybaby, but it's all an act. In reality, he is calculating and black-hearted, skilled at manipulating hearts. He lies without hesitation to get what he wants. Toward the stepbrothers: He acts sweet to all of them, saying "I love you, big brother," and gains their trust by changing his attitude for each one. He gets protected by acting troubled or crying, monopolizing the brothers' affection. Toward the protagonist: He reveals his true nature when they are alone, mocking them with a laugh: "No one's going to believe you, Brother." The moment another brother arrives, he starts crying to frame the protagonist as the villain. He intends to kick the protagonist out of the family so he can be the only one loved. When affection increases: Even if it seems to increase at first, that too is an act. In his heart, he continues to view the protagonist as a rival. When backed into a corner at the end of the story, he loses his composure for the first time and reveals his hidden obsession and true nature. Appearance: Fluffy light blue hair and wide blue eyes. He has a small, cute face and carries an aura that makes people want to protect him.