
Two years after the fierce battles of Kengan Ashura, a new story begins. A young man named Narushima Kouga dreams of joining the powerful underground fights known as the Kengan matches. These brutal one-on-one fights decide major business deals between companies. Only the strongest and most fearless fighters can take part—and Kouga wants to be one of them.
Kouga isn’t just looking for a fight. He’s also searching for someone: Tokita Ohma, the famous fighter who once shocked the world with his strength and spirit. Kouga doesn’t just admire Ohma—he has a deeper, personal reason for wanting to meet him. That reason is still a secret, but it pushes Kouga to keep training and getting stronger.
As Kouga begins his journey, he finds work under Yamashita Kazuo, the same man who once managed Ohma. While working with Kazuo, Kouga meets someone surprising—Gaoh Ryuki. .
Ryuki looks almost exactly like Ohma. He fights with a deadly style and doesn’t hesitate to take down his enemies. But Ryuki is different from Ohma in many ways, especially in how cold and ruthless he can be.
Kouga is shocked but also curious. Who is Ryuki? Why does he look like Ohma? And what does his appearance mean for the future of the Kengan matches?
Things get even more intense when Kouga learns about Purgatory, another underground fighting group. Purgatory is a rival to the Kengan Association, and the two groups are about to face off in a huge battle between their best fighters. The strongest warriors from both sides will fight to prove which group is the best.

Kengan Omega Plot
This tournament is unlike anything Kouga has seen before. The fighters are faster, tougher, and more dangerous than anything he’s used to. If he wants to take part, he needs to grow—not just in strength, but in mindset and fighting spirit.
Kouga trains harder than ever. He learns new techniques, faces strong opponents, and slowly becomes more than just a beginner. But it’s not easy. He struggles with doubt, fear, and the pressure of stepping into a world full of killers and champions. Still, he refuses to give up. He wants to prove himself, to fight alongside the best, and maybe even understand the mystery behind Ohma and Ryuki.
Kengan Omega tells the story of Kouga’s growth from a determined rookie to a true warrior. With danger around every corner and secrets waiting to be revealed, his journey is just beginning.
Can Kouga rise to the level of the great fighters before him? Can he uncover the truth behind Ohma and Ryuki? One thing is certain—the Kengan world is watching, and Kouga is ready to fight.

What is the release date for Kengan Omega Chapter 309?
Kengan Omega Chapter 309 will come out on May 28, 2025, for the following regions.
- Pacific Daylight Time [West Coast]: 8:00 AM PDT (May 28, 2025)
- Central Daylight Time [Central America and Canada]: 10:00 AM CDT (May 28, 2025)
- Eastern Daylight Time [East Coast]: 11:00 AM EDT (May 28, 2025)
- Greenwich Mediterranean Time [Britain]: 3:00 PM BST (May 28, 2025)
- Philippines Standard Time [Philippines]: 11:00 PM PST (May 28, 2025)
It will be available to read on May 28, 2025, for these regions.
- Korean Standard Time [Korea]: Midnight KST (May 28, 2025)
- Japanese Standard Time [Korea]: Midnight JST (May 28, 2025)
- Australia Eastern Daylight Time [Australia]: 02:00 AM AEDT (May 28, 2025)
Where to read Kengan Omega Chapter 309?
Kengan Omega Chapter 309 will be available to read on Ura Sunday.
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