SI-VIS: The Sound of Heroes S1E21 backdrop

SI-VIS: The Sound of Heroes (2025)

S1E21 Strongest Because of Imperfection

Mar 01, 2026 Season 1 Episode 21 Animation, Action & Adventure, Sci-Fi & Fantasy

Episode Overview

SI-VIS: The Sound of Heroes poster

Samael confronts SI-VIS, demanding a showdown for control over Nagi and the numerous Mirages scattered across the planet.