The inclusion of multiple performers like Yuna Harumoto and Aoi Mamiya follows a variety-based structure, allowing for different segments within the nearly two-hour runtime.
In the world of idol media, certain volumes become "classics" because they capture a specific moment in an artist's career where everything aligns—the styling, the setting, and the performance. Sky Angel Vol. 164 is undoubtedly that moment for Ayaka Fujikita.