Ryunosuke and his friends, Yumi and Takeshi, sat in the cozy comfort of Ryunosuke's living room, their minds still reeling from the news that Kazuto had brought to them. The earth was in danger once again, but from what? They had just emerged victorious from their battle against the dark lord and the Void, thinking that peace had finally returned to the world.

Kazuto, an old sage and mentor Ryunosuke, had arrived at their doorstep earlier that day, bearing grave tidings. He spoke of a prophecy that foretold the return of the demons, ancient beings of immense power and malevolence. These demons were not the mindless creatures they had faced in the past, but intelligent and cunning beings who desired to claim the world as their own.

Ryunosuke and his friends exchanged worried glances. They had thought that the demons had been defeated long ago, banished to the depths of the Void along with the dark lord. How could they have returned? What had brought them back?

Before they could delve deeper into their thoughts, the room trembled, and a chilling wind blew through the open windows. They turned their heads to witness a group of demons materializing before them. These demons were different from the ones they had encountered before. They exuded power, their eyes filled with intelligence and malice.

The demons wasted no time in asserting their dominance. They spoke with a commanding voice, recounting the prophecy of their return and how they would reclaim the world. They offered Ryunosuke and his friends a choice: surrender or face their wrath.

Ryunosuke, his determination fueled by the memory of their past victories, refused to bow down. He glanced at Yumi and Takeshi, who nodded in agreement. With unwavering resolve, they charged into battle against the demons, ready to protect the world once again.

The clash was fierce and brutal, with each side unleashing their full power. Ryunosuke's sword sliced through the air with deadly precision, while Yumi's magic engulfed the battlefield in flames. Takeshi, the agile warrior, dodged and countered the demon attacks with remarkable speed.

Yet, amidst the chaos, Ryunosuke couldn't shake off a feeling of unease. The demons fought with an uncanny level of organization and power. Their attacks were coordinated, their strategies calculated. It was evident that they had been planning this resurgence for a long time.

As the battle waged on, trapping the combatants in an intense struggle, a powerful barrier suddenly materialized around Ryunosuke and his friends. They were trapped, unable to escape or retaliate against the demons. The demons reveled in their triumph, relishing the moment they had longed for.

To Ryunosuke's astonishment, the demons revealed the true orchestrator of their resurgence—a familiar face from their past. It was Kyoji, the former leader of the corrupt council that Ryunosuke and his friends had fought against and defeated years ago. Kyoji, presumed to be dead, had survived their previous encounter and had been biding his time, manipulating events to serve his wicked purposes.

Now, Kyoji, in league with the demons, reveled in his newfound power. He sneered at Ryunosuke and his friends, taunting them with his triumphant return. With the demons under his command, Kyoji had the means to exact his revenge and ensure their ultimate destruction.

However, Ryunosuke was not one to be easily defeated. He called upon his inner strength, channeling the depths of his power. The energy surged through his veins, illuminating his eyes with a brilliant light. With a resounding cry, he