the_5_magic_stones_(touhou)
Boss of the third stage of Story of Eastern Wonderland. "The 5 magic stones", "Five Magic Stones" or "FMS" is a popular western fanname based on their appearance, but it's unknown what these stone are, or even if they are stones. Most depictions of them may be tagged as orbs. They're stood on a platform with cannons.
See also:
- Touhou Wiki article: Five Magic Stones
- NicoSeiga tag search: 封魔録三面ボス
- Nicopedia article: 封魔録三面ボス