He conquered the arena, but victory thrust Jace into a new nightmare. Now, submerged in a quantum prison and stripped of his legendary Kusanagi sword, he faces an enemy unlike any he's encountered.

Picking up from the electrifying climax of Episode 4, Jace's triumph in the Battle Arena is swiftly replaced by a terrifying new reality. Trapped in a translucent bubble deep within the Sacred Playing Fields, he finds himself disarmed and helpless, unable to reach his most trusted blade. His formidable new opponent: the Nine-Tentacled Siren, a monstrous entity whose every severed limb remarkably multiplies into two more.

Forced to fight with nothing but an unfamiliar Karambit knife and his raw, untested "Feral Intuition," Jace must adapt on the fly, discerning patterns and anticipating the Siren's relentless, regenerating attacks. But the Siren is not merely a beast; she possesses chilling intelligence, learning and adapting to his strategies faster than he can fight. With his back against the wall and his life measured in a single breath, Jace is forced to unleash the bizarre, unpredictable powers of the "Doohickey"—activating its chaotic "Freeze Ray," "Sonic Stun," and "Shockwave" abilities in a desperate, last-ditch effort to survive.

Can an ordinary mailroom assistant, reborn as the Samurai Vampire Slayer, overcome this impossible challenge and earn his promised wish for freedom? Or will this brutal underwater battle mark the end of his extraordinary Isekai LitRPG adventure, leaving him with nothing but 2 HP and a desperate hope?

Important note for readers:

The book is presented as episodes, with the first episode being roughly 100 pages and the subsequent episodes about half that length.

Thank you for your kind consideration and thoughtful feedback.

This is episode 5 of the series
Episodes 1-6 are available now.
Box set of Episodes 1-4 also available
Episode 7 is available on preorder.