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THE FIRST 2 CHAPTERS WILL BE INFORMATION EXPLAINING THE CROSSOVER AND INFORMATION RE: THE ORIGINAL WORK INCLUDED IN THIS CROSSOVER. THE STORY STARTS AT CHAPTER 3

The Premise

Before the Kyoto baseball game in Jujutsu Kaisen, Gojo tries to “boost morale” by opening a portal to somewhere fun. Wanting to make it cinematic, he adds a randomizer—because stepping into the unknown is cooler, obviously—and accidentally launches his students across the multiverse into the Outlaw Star universe.

Their arrival triggers massive cursed-energy explosion, a sudden arrest, and an unlikely team up leaves them stranded in an alien world without a way home They partner with three escaped prisoners, three brothers—the Lucky Bastard Crew—whose only shot at freedom is winning the legendary Heifong Grand Prix. The race draws in competitors across worlds: broke bounty hunters, desperate space cowboys, and even the Guardians of the Galaxy, all chasing the same universal desire: money, survival, or redemption.

As alliances form and tempers clash, each crew becomes a mirror for the others: bonded siblings, forged families, and teams still learning how to hold themselves together. But the Grand Prix is deadlier this year; weapons are allowed in designated zones, ships explode easily, and one wrong maneuver in zero-gravity can erase your entire existence. In the end, the real stakes aren’t just the prize—they’re whether any of them can make it out alive, return home, or become something better in the chaos of the race.

Canon Entry Points

Jujutsu Kaisen — After Goodwill Event + Bridge Mission, before Baseball Game

Outlaw Star — Episodes 10-11 (the crossover is based in this IPs verse)

Cowboy Bebop — Post "Mushroom Samba" (Episode 17)

Guardians of the Galaxy — 2021 video game continuity

RULES OF THE CROSSOVER

Power Scaling

• All sorcerers are heavily nerfed on Ramayis and in the Outlaw Star–style universe.
• Physical attributes remain intact (Yuji’s athleticism, Megumi’s stamina, Nobara’s durability, Gojo’s reflexes), but cursed techniques barely function.
• No domain expansions, no spatial manipulation, no levitation, no teleportation, no sustained summons, no widespread CE reinforcement beyond subtle baseline.
• Gojo can perform small, precise, low-output techniques in moments of desperation (e.g., gently redirecting Yuji’s trajectory in space), but nothing combat-defining.
• Sukuna remains fully Sukuna in mind and body — cunning, ruthless, perceptive, powerful — but he has zero access to cursed techniques, making him a purely physical combatant with Yuji-tier stats.
  • The following, in order by most to least, describes the casts cursed energy reserves:
    • Gojo: Has the highest reserves to pull from; however, he cannot use cursed techniques with heavy consumption requirements. This is because the technique he used to – accidentally – cross the multiverse is as energy consuming as a hollow purple due to the parameters he put on the technique for “cinematics” (the narrative randomizer).
    • Megumi: Being a prodigy himself and the second most capable with cursed energy to Gojo in the cast, he has the second highest reserve of cursed energy. Consider him like first season, spirit detective Yusuke with only 3 spirit gun blasts. I understand that Megumi has various shadow summons he could use, but considering the circumstances, the need to reserve as much cursed energy as possible, and a need to be tactical in the narrative he will opt for low consumption moves only. This means that the move he will rely on the most – if not the only – will be the Bunny Escape/Bunny Shikigami summon.
      • In this crossover he will be able to control how many he can summon; therefore, he can use the summon with more efficiency, being able to summon one or more.
    • Nobara: While phenomenal in her own right and will get her time to shine, she doesn’t have nearly as much cursed energy as Megumi, but just enough of a reserve to be in the running. As third, she has enough cursed energy for minor techniques, but sadly nothing that requires the straw doll, which she may use for strategic reasons (perhaps distraction? Throw it?) or some other need (could also be used to display that cursed energy doesn’t function here if she tries to perform such a demanding technique). Hairpin is modified and is described below:
      • Instead of explosive force, Nobara coats her nails in cursed energy to essentially create the force of a modified nail gun. The nail strikes are just as fast, but the impact and damage just isn’t explosive. She can’t predict how many shots her CE reserve will allow, creating natural limits on her sustained fire. She can’t predict how many shots her CE reserve will allow, creating natural limits on her sustained fire. She can coat the surface area of an object with cursed energy, creating high-velocity, high-impact projectiles.
      • The more surface area an object has, the more cursed energy it consumes, but the more mass it has, the more damage it does.
    • Yuji: Canonically has almost no innate cursed energy; therefore, when he crosses into the Outlaw Star universe he arrives with zero usable CE reserves. There is no ambient cursed energy in this universe for him to draw from. He is strictly a physical fighter, relying only on his natural strength, stamina, and combat instincts. His durability and reflexes remain consistent with his Season 1 portrayal. His role in this crossover is to rely on pure physicality, adaptability, and raw determination.
    • Sukuna: Upon crossing through the portal, Sukuna siphons only the cursed energy that already belonged to him (the portion stored inside Yuji’s body). Because this universe contains no cursed energy, Sukuna is forced to use the entirety of this reserve to simply sustain a physical form.
      • He cannot expend cursed energy offensively; doing so would risk destabilizing his manifested body. This means no Domain Expansion, no high-level techniques, and no CE-based attacks.
      • Physically, Sukuna is as strong as Yuji — essentially a biological clone with enhanced precision, ferocity, and combat intuition. The markings remain his distinguishing visual trait.
      • His frustration at being unable to use cursed techniques creates both tension and humor within the narrative, while his predatory intelligence and ruthless experience still make him one of the most dangerous fighters in the cast.

• Does cursed energy function the same way outside the home universe?

  Yes — if they have enough of it.

  Cursed Energy operates normally but only while reserves last. If they run dry, they simply can’t use techniques; they don’t die, but they lose tactical versatility.

  Gojo's limitation

  Gojo is hard-nerfed because he must conserve his cursed energy to open the return portal home.

  No Hollow Purple, no Domain Expansion, no teleportation — only:

  • minimal, surgical CE usage (e.g., catching Yuji drifting in space),
  • plus his extremely high physical stats.

  Sukuna's limitation

  Sukuna has:

  • full physical prowess

  • full intelligence/cunning

  • zero usable cursed technique, because his body is made of CE itself.

    If he attempted to use CE, he’d be draining his own existence. He realizes this mid-story.

  Does cursed energy disrupt technology in the Outlaw Star universe?

  No — by design.

  Are universe-breaking feats forbidden?

  Absolutely yes.

  Gojo cannot atomize ships, manipulate spacetime casually, or do anything that would trivialize the Outlaw Star–style tech or the tension of the race.

  All god-tier abilities are off the table.

  Can the main cast die?

  Yes — narratively.

  Practically speaking, the canon sees the crew's safe return, but the story plays with “how on earth do they survive this?”

  That tension is the driving force.

  Are catastrophic abilities banned?

  Yes — across the board.

  • Gojo
    • Cannot use Hollow Purple, Red/Blue, teleportation, spatial manipulation, or domain expansions.
    • He is operating almost entirely physically, with only microscopic CE usage for surgical moments.
  • Megumi
    • Only the Bunny Shikigami.
    • Summons are limited, tactical, and quantity-controlled.
    • No divine dogs, no Max Elephant, no Nue, no domain expansion.
  • Nobara
    • No Straw Doll Cursed Technique, no Resonance, no explosive Hairpin.
    • She can coat objects in Cursed Energy.
    • CE coating rules follow your system:
      • More surface area = more CE cost.
      • More mass = more damage.
      • Nails are efficient, but she must be strategic (finite resources).
  • Yuji
    • No Black Flash, no divergent fists.
    • Only physical prowess + enhanced perception from CE sensitivity.
  • Sukuna
    • All physical intelligence and menace intact.
    • Zero CE use, because doing so drains his literal existence in this universe.

  Do they keep their CE sensory advantages?

  Yes.

  They still have:

  • above-human perception
  • combat intuition
  • danger awareness
  • emotional/energetic “reads” of the environment

  Just not enough CE to act on it with techniques.

In addition to the information provided, the story will be told in a screenplay format. This is because 1) the story is still being drafted and 2) this will make it easier for me to share the story on a consistent schedule. I'm also a writer who loves the backspace button, especially when it comes to descriptive imagery. I will 100% focus on how to best describe the sky instead of getting the story done. This may be a bit of trail and error, but please bear with me. Thank you for reading this far!