The Batcave is filled with the low hum of machinery, a vast array of monitors flickering with Gotham's current status and recent reports. Batman, Red Hood, Batgirl, and Jotaro stand around the central console. Jotaro, arms crossed and ever stoic, watches as the Bat-family takes in his story. The cavernous space, with its shadows and cold stone, is an oddly fitting place for revelations.

Batman (leveling a serious gaze at Jotaro): "You've fought with us, and you've earned some trust. But you've been dodging questions about your past. It's time we knew the truth."

Jotaro sighs, glancing at each member of the Bat-family, then looks down at the console's polished surface, gathering his thoughts. His voice is low, and his words are measured as he begins.

Jotaro: "I'm not from this world. I'm from a different universe—a place where people have abilities you'd call... bizarre. Some people in my world wield powers through beings we call Stands. Mine, Star Platinum, is one of the strongest."

He pauses, glancing up as Red Hood and Batgirl exchange curious glances.

Batgirl: "How come none of us can see it?"

Jotaro: "Only Stand users can see Stands. It's an extension of my will, of my fighting spirit. And that's how I found myself here. I was tracking a man named Funny Valentine, the President of the United States… from my world. He has the ability to travel between dimensions, something far more dangerous than anything you've seen. Or even I have, for that matter."

Batman's eyes narrow as he processes the information, his mind clearly calculating the potential threats.

Batman: "You mean this Valentine character has a Stand that can access parallel worlds and cross between them at will?"

Jotaro: "Yes. And that makes him nearly impossible to contain. He's already tried to destroy my world in his pursuit of a twisted version of 'American ideals'—he'll do anything for his own sense of 'justice.' I battled him back home and nearly put him down, but he pulled one last trick and sent me here. I don't think he knew where I'd go, he just wanted to get rid of me."

Red Hood (leaning back with a low whistle): "Believe it or not big guy, we know all about dimension hoppers. They're a Tuesday in this universe."

Jotaro: "That's good news for me then. His Stand, Dirty Deeds Done Dirt Cheap, can open rifts to other dimensions when he places himself in between 2 objects, his preferred object is the American flag. But that's not all he can do. He acquired these parts of something called the Holy Corpse, giving birth to his new ability 'Love Train'."

Red Hood: "And what do we do about that?"

Jotaro: "As long as he stays within Love Train's barrier, he's virtually untouchable. Luckily my Time Stop ability has given me the advantage I need, but by now he's definitely thought of a way to get around it. So I need your help."

Batman: "I can't bring the Justice League with us, it'll just leave this Earth at risk. We'll have to make do with our little quartet."

Batgirl (looking at Jotaro): "What can we do to get around Love Train?"

Jotaro: "It won't be easy. Valentine's power makes him hard to trap, but he has a weakness. He can't attack me without leaving Love Train's barrier. If we can keep him outside of it long enough, I can finish the job."

Batman (nodding, formulating a plan): "Then we'll need to draw him out, force him into a situation where he'll have to protect his interests. We'll keep him busy so you can make your move."

Red Hood (smirking): "I love providing distractions."

Jotaro: "I'll need you all to be ready. Star Platinum's power to stop time is our best chance of finishing him. Once he's cornered, he won't escape. But I'll only get one shot."

Batman regards Jotaro, then nods decisively.

Batman: "Then we'll help you. Whatever we need to do to stop Valentine, to make sure he can't endanger your world—or ours."

The group exchanges firm nods, a sense of resolve settling over them. For the first time since arriving in Gotham, Jotaro feels a sense of true alliance.

Jotaro (with a slight nod of respect): "Thank you. Valentine's not just my problem anymore—he's a threat to any world he touches."

Batman: "Then it's settled. Let's roll out."