
Quick answer — Mucc performed 2 anime themes, including "CLASSIC" from The Seven Deadly Sins: Signs of A Holy War, "Yakusoku" from Night Raid 1931.
Mucc performed the anime theme songs "CLASSIC" (The Seven Deadly Sins: Signs of A Holy War), "Yakusoku" (Night Raid 1931).
Mucc's first listed anime theme is "CLASSIC", the opening of The Seven Deadly Sins: Signs of A Holy War.