Spend on Her, Get 10,000X Back in the Apocalypse
After his girlfriend sells him out to a death game, James unlocks a system that turns every coin spent on female monsters into ten thousand—and with it, he conquers monstrous bosses, crushes the elite, and seizes total dominion over the end of the world.
Story Guide
Episode 1
The apocalypse doesn't knock. Supernatural forces seize the world and announce the rules: random people get drafted into deadly games, winners get rich, losers die, and nobody may refuse. James only cares about one thing — getting to Alice, his girlfriend of three years, before she faces it alone.
He finds her in bed with Riley. They've been together behind his back, and Riley, a sea-rank awakened, has already been picked for a game. Alice's solution is simple: James takes Riley's place in Abyss Castle and dies there. One dread coin, tossed at him like payment for sleeping with his girlfriend. He refuses. He doesn't get a choice.

Episode 2
Abyss Castle has its own laws: enter a challenge zone, finish every challenge, or die. When a contestant tries to bolt, the no-escape rule erases him on the spot.
Lisa, the castle's junior screening officer, introduces herself as the gatekeeper — only those who pass her screening reach the final trial. Fail, and you're erased. Round one is brutally simple: entertain her. One contestant sings. It's awful. He's gone.
Watching, James spirals — he won't die in Riley's place, he won't accept it. That emotional spike trips something: a female entity 10000x cashback system activates. Spend one dread coin on a female target, and the system pays back ten thousand.

Episode 3
James studies Lisa: a ghost, cold and decisive, who has loved music since childhood and can't resist it. On the table sits an old violin — one dread coin for the right to use it.
The other contestants think he's suicidal. Lisa already erased a man over music, and now he's reaching for a broken violin. Dread coins are impossibly rare, and he's burning one on a prop. But spending on Lisa triggers the cashback: ten thousand dread coins land in his storage. He immediately buys a basic violin skill and plays. Lisa passes him through the first trial and leads him toward the great hall — and the castle's true master.

Episode 4
The great hall belongs to Sybil, the S-rank Abyss Witch. Her game: each contestant performs a scene with Lisa or one of her servants. If Sybil likes it, you live. If not, you become a statue and keep her company — forever. Only one person gets to walk out alive.
A businessman volunteers first, playing a wealthy suitor showering Lisa with everything he owns. Sybil probes: thirty dread coins, wasn't that everything? Then she reminds everyone he sold his own daughter to an executive last week. He panics, offers to double it. Sybil's verdict cuts clean: the rule is acting, not showing off your money. The room's hope shrinks to one survivor.
Episode 5
With only one survivor allowed, James knows he has to perform before anyone else claims the spotlight. He picks Lisa and stages a tragic reunion — two sisters torn apart by the apocalypse, finally finding each other. Three months of searching, hunger, fear, and one raw question: why did you leave me behind?
It lands flat. Bribing these entities with dread coins doesn't work. A family reunion engineered for emotional bonding doesn't work either. James realizes he can't beat beings like this at their own game by following the script. He has to find a way into their hearts — and he needs a target worth aiming at.
Episode 6
A clue surfaces about Sybil herself: a thousand years ago, her beloved betrayed her on the eve of their wedding and cursed her with a love's kiss, withering her into a witch and sealing her inside Abyss Castle forever. The unfinished wedding is the wound she's never closed — and she despises cheaters above all else.
James volunteers for the trial no one dares attempt. Refusing still means death, so he steps forward. Lisa recognizes him as the one who cleared her first trial, but warns that Sybil's standards are far higher than hers. He wants to take the chance anyway. Sybil's answer is a threat: challenge me, and they all die with you.
Episode 7
The other contestants turn on James, convinced his recklessness will get everyone killed. He fires back: only one person was ever meant to survive, and he'd rather wager everything than crawl out alone.
He proposes a bet to Sybil. If he beats her, she releases every one of them. If he loses, they all die together. For a thousand years, no one has dared challenge her authority — he's the first, and she admires the courage. She accepts, over the room's objections, and offers the others one last chance to challenge her separately. Their task: act out a perfect wedding with her. Move her, and everyone goes free with a generous reward. Fail, and they all become statues.
Episode 8
James has just been betrayed by his girlfriend, and now he has to perform a perfect wedding with an S-rank Abyss Witch. He knows Sybil's weakness now, so he risks everything — starting with a hug. It lands wrong. She erupts, calling him a filthy scumbag for daring to defile her, and the room assumes he's finished.
If a hug isn't enough, he goes bolder: a wedding isn't complete without a kiss. Something shifts. She demands to know what he's doing; he points out that a couple in love kisses. Then he sees it — her appearance. Is that what she actually cares about? He mocks the look, and her fury spikes.
If betrayal, monsters, and a system that pays ten thousand to one sound like your kind of ride, hit play and see how far James pushes his luck.
Cast
- James — protagonist; betrayed by his girlfriend and forced into the apocalypse game; unlocks the 10000x cashback system
- Alice — James's girlfriend of three years; cheats with Riley and helps force James to take Riley's place
- Riley — Alice's lover; a sea-rank awakened who was selected for an apocalypse game and uses James as a substitute
- Lisa — Abyss Castle junior screening officer; a ghost who loves music and tests contestants
- Sybil — S-rank Abyss Witch; ruler of Abyss Castle who forces contestants to act and turns failures into statues
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