Masayoshi Komi shares a communication disorder akin to his daughter Shouko's, rendering verbal expression profoundly challenging. He relies extensively on gestures, non-verbal cues, and silent understanding within his family. This condition remained unchanged from his youth through adulthood. During high school, he demonstrated exceptional talents across varied disciplines, earning widespread recognition for his skill despite his quiet, reserved demeanor. Classmates dubbed him "Masa," alluding to his enigmatic aura. His reticence drew Shuuko Niimi (later Komi), who initiated their courtship. He reciprocated her affection through an orchestrated public gesture—reportedly Japan’s first flash mob. Their relationship flourished through motorcycle rides and beach excursions; his intense sandcastle focus initially masked distraction caused by her presence. They married and formed a family. Masayoshi shares a deep, wordless bond with Shouko, communicating through subtle glances and gestures. A similar silent understanding defines his dynamic with his son Shousuke. Shuuko’s energetic nature complements his reserve, creating familial harmony. He exhibits protectiveness toward Shouko, particularly regarding her friendship and eventual romance with Hitohito Tadano. His initial stern assessment included interrupting a Valentine’s date to take Tadano and Shousuke to an aquarium. There, he revealed encyclopedic marine knowledge, occasionally overwhelming others with detailed explanations. Later, he feigned illness during a sauna test to gauge Tadano’s concern, resulting in an accidental mouth-to-mouth incident that became a running joke. Despite early reservations, he grew genuinely fond of Tadano, accepting him as family and endorsing his relationship with Shouko. He displays proficiency in baking, woodworking, motorcycle operation, and intricate sandcastle construction. His appearance features dark hair, glasses often obscuring his dark purple eyes (occasionally visible), and a consistently stoic expression projecting a sophisticated presence sometimes misinterpreted as intimidating. His name "Komi" combines characters for "old/antiquity" (古) and "see/look" (見). "Masayoshi" blends "leader/commander" (将) and "congratulations/joy" (賀). He ranked 18th in a series popularity poll.