NXT_MARVEL

Isagi Kawaguchi was just an ordinary guy — until he woke up in the world of Blooming Hearts, his favorite school-life romance anime. But there’s a catch: he’s reincarnated as an extra. A side character so insignificant, his entire screen time in the anime was five seconds.
But Isagi refuses to stay a background character. Fueled by the regrets of his past life — where he wasted his youth buried in books — he’s determined to live life to the fullest this time. And his biggest goal? Winning the heart of May Minase, the sweet and talented girl who captured his heart when he watched the show.
There’s just one problem. Or maybe several.
Rin Kazuki, the perfect protagonist — handsome, brilliant, athletic, and already well on his way to building his dream harem. And May? She’s supposed to fall for Rin.
But Isagi isn’t backing down. From joining clubs to standing out in class, Isagi is ready to fight his way into May’s heart — even if it means taking on the ultimate protagonist himself.
Let the battle for love (and survival) begin!

My Battle for Love in a World Where I’m Just an Extra

The festival was just around the corner, and the excitement in the air was almost electric. But for me, it wasn't just about the festival anymore — it was about proving myself, about showing May that I could stand on the same stage as Rin.

"Isagi!" Kaito called, running up to me. "We've got a problem. One of the main acts just dropped out."

"The dance group. They were supposed to close the event."

"I have an idea," May's voice broke in.

We turned to see her standing there, a determined look on her face. "Why don't we put together a performance ourselves?"

My heart skipped a beat. "You mean… us?"

She nodded. "You, me, Kaito — and anyone else willing to help. We can't let the festival end without a bang."

And just like that, we had a plan.

Practices were chaotic but fun. May was surprisingly good at choreography, and even though I had two left feet, she was patient.

"No, like this," she said, stepping closer to adjust my stance. Her hands brushed against mine, and I swear my brain short-circuited.

"R-Right," I mumbled, trying to focus.

From across the room, Rin watched us, his smile a little tighter than usual.

"Looks like you're having fun," he said, walking over during a break.

"We are," I said, meeting his gaze head-on.

"I hope you're ready," he said, his voice low. "Because I'm not planning on stepping aside."

The day of the festival arrived faster than I expected. The school was alive with color and sound, and the energy was contagious.

"Isagi!" May called, running up to me. "We're up next!"

My nerves were shot, but the excitement in her eyes kept me steady.

We took the stage together, and as the music started, everything else faded away. The crowd, the competition — all I saw was her.

When it ended, the applause was deafening.

"You were amazing," May said, breathless and glowing.

And in that moment, with the cheers still ringing around us, I felt something shift. I wasn't just chasing after her anymore — we were standing side by side.

But I knew the battle with Rin was far from over.

Breaking Through