Takuya Gloose, once a researcher at Kushini Island's Sansara Research Center, volunteered for testing the Malhuder Particle Laser—a satellite weapon that catastrophically tore a dimensional rift, unleashing an eldritch entity into the ocean. During the crisis, he and colleague Haruka Alford were coerced by superior Galun Hayetz into retrieving samples from the churning waters, forging Takuya’s smoldering resentment toward Hayetz’s ruthless prioritization of research over human safety.

Three years later, now a university academic, Takuya received a cryptic, desperate letter from Haruka begging for intervention. Returning to Kushini, he found the facility seized by military forces and Haruka barricaded in her lab, her paranoia escalating as she disavowed sending the plea. Collaborating with junior researcher Rui and confronting Lyse Molun—a former lover turned military operative—Takuya unraveled Haruka’s clandestine studies on the entity’s corrosive influence, which had silently warped her psyche.

Secret documents exposed Haruka’s conclusion: the laser had bridged realities, permitting destructive interdimensional incursions. Her possession by a spectral invader culminated in her fusion with a monstrous manifestation of the entity, triggering chaos. As the creature ravaged the island, Lyse fell in the crossfire, and Takuya commandeered Hagane—a second entity dredged from the depths—to engage Haruka’s abomination in a duel that reduced Kushini to ruins.

The final confrontation left both entities obliterated. Takuya was later discovered unconscious and adrift on floating wreckage, his fate uncertain. The ordeal chronicles his transformation from a guilt-ridden scientist to a reluctant combatant against humanity’s hubristic tampering with forces beyond comprehension.