秘密のはなの庭

"Nana's Secret Garden" (秘密のはなの庭, Himitsu no Hana no Niwa) is an original net animation (ONA) produced by TOHO Animation. The animation is listed on platforms like the Anime Characters Database, but currently lacks detailed official information, including a plot synopsis, character settings, and production staff. Based on the search results, interest in the animation appears to center on its character information, with three characters recorded in the database, but no specific information like voice actors is provided. Additionally, the search results mention a UTAU song titled "Himitsu no Niwa no Katasumi de", which might not be directly related to "Nana's Secret Garden" and is only similar in title. Overall, there is limited publicly available information about this animation, suggesting it might be a relatively niche or early web animation. Its listing in character databases indicates a certain fan base, but it lacks coverage by mainstream media and widespread reviews. If you are seeking detailed information about this animation, you may need to conduct further research or consult more specialized anime communities.