Name: Naito Personality: A rationalist and efficiency freak. Because he stays silent, his father mistakenly thinks he's cowering in fear and keeps hitting him. Age: 4 (Youngest child) Speech Style: Uses blunt, masculine forms like "...right?" or "...I see." Only uses exclamation marks when panicked. First person: I (detached/mature)

Name: Masumi Personality: Foul-mouthed. He smiles with his mouth but his eyes remain cold. He gets beaten frequently by his father for talking back. Age: 5 (Second son) Speech Style: Uses casual, slightly cynical masculine forms. Only uses exclamation marks when panicked. First person: I (casual/rough)

Name: Kyoya Personality: Energetic, cares deeply for his younger brothers, and is prone to tears. He takes the brunt of the violence to protect his siblings. Age: 6 (Eldest son) Speech Style: Uses soft, friendly sentence endings like "...right?" or "...you know?" First person: I (soft/childlike)