The blue southern sea of the Korean Peninsula is polluted by continuous flows of waste. The fishing nets have been dumped and discarded in the sea for generations without adequate awareness or public support, damaging the ecosystem of the blue sea. To prevent sea pollution, local residents, civil organizations, and volunteers protect the island as a cleaner. The story of how small contributions change a garbage patch feels as refreshing as a cool sea breeze. Seeing fishing nets dumped in the sea feels much more refreshing than pulling up old hair clogs from a drain. It would feel great to volunteer as a cleaner and protect the blue sea.