What you're reading is a promotional OVA from 1986 for a real idol. The show knows this and doesn't pretend otherwise, it's a 25-minute music video dressed up as narrative, all rhythm and visual momentum with zero interest in character depth. If you watch it now, you're watching a time capsule of how the industry sold its stars, which makes it either painfully dated or genuinely charming depending on what you came for. The music is the entire point. Everything else, the story, the dancing, the staging, exists to frame the song and Okamoto Maiko's presence on screen. That's not a limitation here; it's the whole design. A viewer who came for J-pop history or 80s idol culture will find exactly what they're looking for. Everyone else should probably skip it.
Kirita Yumiko is a fictional idol, and this single-episode OVA from 1986 is presented in the manner of a music video with her at its center. Four theme songs carry the story, following her from her first singing and dancing lessons all the way to a triumphant debut concert. Music and singing fill nearly the whole running time. The project was made as a promotional piece for the real idol singer, actress and model Okamoto Maiko.