When the deep-sea pterosaur Nidhogg was eroded by super-ancient dark energy, it did not lose its mind like other monsters. It remembers the blue ocean, the freedom it had when it was an ordinary creature, and it even remembers that humans polluted its home first.
Regarded by the TPC as a "threat that must be eliminated" and by Tiga as a "darkness that needs to be purified", Nidhogg struggles to survive in the gap between light and darkness. Until one day, it discovered that its consciousness could resonate with the giant of light - it turned out that Tiga had also been burdened with darkness, and it turned out that the so-called "justice" was never black and white.
When humans become the "invaders" of nature, who is the real monster?
