Created in 2025, Medusa in the Nuclear Sea is an experimental immersive electronic composition inspired by the ecological anxiety and public controversy surrounding the release of ALPS-treated water from Fukushima Daiichi into the Pacific Ocean. Through unstable low-frequency movement, fragmented signals, and gradually transforming synthetic textures, the piece imagines Medusa as an oceanic organism altered by human intervention—suspended between beauty, mutation, and environmental uncertainty. The original work was composed and mixed for an immersive multichannel format; the version presented here is a stereo render adapted for web listening.