Kyōichirō Teratsuki is a character from the Boogiepop series, specifically appearing in the Overdrive: The King of Distortion story arc. He is an eccentric and wealthy individual who serves as the chairman of the MCE Corporation, also known as Moon Communications Enterprises. He is the founder of this corporation and the creator of a strange and enigmatic structure called the Moon Temple. Teratsuki is secretly a synthetic human, an artificial being created by the covert Towa Organization. Due to his synthetic nature, he does not age naturally, maintaining a youthful appearance despite being over fifty years old. By the time the main events of the Overdrive arc take place, Teratsuki has already died, leaving behind the Moon Temple and the mysteries surrounding its purpose. His motivations and actions are tied to the larger, hidden schemes of the Towa Organization, though the precise nature of his personal goals is not fully elaborated within the story. The Moon Temple, built before his death, becomes a focal point for subsequent events, drawing the attention of various characters and serving as a catalyst for the King of Distortion plotline. Teratsuki’s relationships with other characters are primarily defined by his corporate and organizational affiliations; he is connected to the Towa Organization and its network of synthetic humans and operatives. His character does not undergo significant development within the narrative, as he is already deceased when the arc unfolds, and his legacy and creations drive the story more than his personal journey. As a synthetic human, he possesses enhanced durability and an unnaturally long lifespan, but specific combat or supernatural abilities beyond his artificial biology are not prominently displayed. Teratsuki’s role in the series is that of a background figure whose prior actions have a lasting impact on the world, particularly through the Moon Temple and its connection to the overarching conflict involving the Towa Organization and the enemies of the world.