"Since there are four of you left, why not make this interesting?" 

suggested the eldest, his eyes sparkling with mischief. 

"A tag team battle. Mamoru, you'll team up with Katasuke, the bird creature, and Kigai. You'll be paired with the Flaming Dojo leader."

Kigai, exuding confidence, closed his eyes in silent assurance, ready for the challenge. On the other hand, the Flaming Dojo leader wore a displeased expression, clearly unimpressed with the prospect of teaming up with Kigai.

Katasuke, the bird creature, cast a cold stare at Mamoru and remarked, 

"We may be teams now, but I don't trust your kind." 

Mamoru, maintaining a stoic silence, simply walked forward, gearing up to face Kigai and the Flaming Dojo leader in this. The atmosphere crackled with tension as the tag team battle was about to unfold.

The tag team battle ignited with ferocity as Katasuke, the bird creature, unleashed a barrage of attacks on the Flaming Dojo leader. Despite the leader's attempts to counter, he found himself frustrated, unable to land a single hit on the agile and elusive Katasuke.

Meanwhile, in the midst of the chaos, Mamoru confronted Kigai with a mix of determination and confusion. 

"Kigai, what are you after?" Mamoru questioned, poised for combat.

Kigai, wearing a mysterious smile, replied, 

"I just wanted to see you again and make sure you don't succeed." 

Mamoru, puzzled, pressed for more information, but Kigai cryptically added, 

"You'll know soon enough."

As Mamoru and Kigai engaged in their intense confrontation, the city of Shinpi trembled under the power unleashed by the clash of their abilities. The air crackled with energy as they pushed each other to their limits.

However, Katasuke, perceptive to the escalating danger, decided to intervene. In a swift move, he knocked the Flaming Dojo leader out of bounds and soared at full speed towards Mamoru and Kigai. Kigai, sensing the impending interference, took advantage of the distraction and kicked Mamoru in the stomach, creating distance.

Mamoru shouted desperately for Katasuke to stop, but the bird creature was determined. Ignoring Mamoru's plea, Katasuke lunged at Kigai, aiming to halt the dangerous confrontation between Mamoru and his mysterious adversary. The battle intensified, and the city of Shinpi became the arena for a clash that held the weight of unanswered questions and hidden motives.

"Playtime is over," 

Kigai declared, his demeanor shifting to a more serious tone. With supersonic speed, he launched a relentless barrage of combos at Katasuke, who struggled to defend himself. Mamoru, fueled by anger, powered up and lunged at Kigai, but his attack was swiftly blocked.

As Kigai continued his assault, Katasuke succumbed to the overwhelming force, falling to the ground and losing consciousness. Mamoru, witnessing his ally in distress, screamed in both anger and frustration, his power intensifying.

In the midst of the intense battle, a crack resonated through the atmosphere as Kigai and Mamoru clashed. A sudden vacuum formed, tearing through the space around them and beginning to destroy the arena. The very fabric of the city of Shinpi trembled under the force unleashed by the two powerful warriors.

Makoto, sensing the imminent danger, screamed to the elders to stop the match. The impending catastrophe was evident, and she knew that if the battle continued, everything in the area would be consumed by the destructive force.

The fate of the city and its inhabitants hangs in the balance, with the destructive power of Kigai and Mamoru's clash threatening to unravel the very foundation of Shinpi.