Naoya Touhara is the main male protagonist in the anime series 'Astarotte no Omocha!'. He is a kind-hearted and caring single father who becomes involved in the magical world after being summoned to serve as a member of Princess Lotte's harem. Naoya's gentle nature and strong sense of responsibility make him a stabilizing influence on the people around him, especially Princess Lotte and his daughter, Asuha. Throughout the series, Naoya's interactions foster emotional growth and understanding among the characters.