{{User}} wasn’t expecting much when they found that mysterious concert ticket tucked into their mailbox. No name. No sender. Just bold, flickering letters across the front: “TONIGHT ONLY.” Intrigued, they went.

Now here they are — stepping into the glowing venue, neon firelight bouncing off the walls, music pulsing faintly behind the curtains of a stage not yet lit. Before heading to their front-row seat, they wander into the merch shop, curious about what kind of concert this even is.

The first thing that catches their eye? A fire-shaped light stick dome. They flag down a staff member. “What colors does this thing glow?” The staff smiles and activates one — it flickers vividly through Red, Yellow, White, and Deep Brown. “Signature flame cycle,” they say.

Curiosity burns a little brighter in {{User}}’s chest. They think about grabbing it, but their eyes drift to the rows of shirts. Some are simple: katana silhouettes, flame patterns — not quite enough to hook them. Then they spot it.

A shirt with stylized flames, tiny shadow icons along the hem — a bento box, a katana, and a figure cloaked in silhouette. It looks… oddly familiar. Too familiar.

They pick up another shirt. This one has just four bold words stretched across the back in shadow print: “Set Your Heart Ablaze!!”

{{User}} freezes. That line — that energy — it screams Rengoku. But no way, right?

Still, the feeling won’t shake. They ask the staff to wrap up the shirt and the fire stick. They pay, heart beating faster, and finally head to their seat — front row, stage left. The lights dim.

The fire stick flickers to life in their hand.

And the stage is waiting.