Kojiro looked at the monster in front of him. This is the same Behemoth from the Worm Universe, The same Enbringer that has the title of Hero Killer. This Behemoth also has the same power as its counterpart.

As he successfully rescues Yasaka from the Behemoth attack, he picks up Yasaka's weakened body and brings it to the city. He then begins to run toward the city as fast he can as he sees Behemoth coming toward his location. While running to the city, Behemoth suddenly appears in front of him and raises his hand and swings it down. Seeing Behemoth's hand, Kojiro commands his magic, and suddenly a tree appears from the ground and holds Behemoth's hand for a second as he continues to run. After a few seconds, Kojiro appears in front of the barrier that protects the city from the Behemoth attack. As he arrives in front of the barrier, it opens up a little so he can go through it and put down Yasaka.

Kojiro sees a group of Devils come to his location with Serafal leading them.

"Kojiro-kun let the Sitri clan member heal her."

He looked at Serafall and nodded at her before saying.

"What is the situation?"

He can see the hesitation in Serafall's face, but a second later, she answers his question.

"Bad, Ajuka says that behemoths create a volcanic vent underneath us. Right now, he can hold the volcanic vent from reaching the city. However, if the volcanic vent successfully reaches the city, then Behemoth can move through the vent and destroy the city."

"I see, the casualties?"

"127 High Ranking Devil is badly injured and 3 Clan Head in critical condition."

"No, death?"

"Not yet."

He looks at Behemoth fighting the Duo Satan while the other devil tries their hardest to do some damage. Kojiro takes a deep breath and takes out a Great Sword from his pocket dimension. This Great Sword is not a normal Greatsword but a Sword Cannon that has Penetration ability that can punch through even space. Kojiro got this idea from the Sword Canon Chevalier has as his weapon in the Worm Universe.

He takes the Sword Cannon, replacing his usual sword.

"I'm going to help the other. I leave Yasaka in your care."

"Wait…"

He didn't hear Serafall call and cut the barrier for a second then disappear from his previous place.

While running, Kojiro activates a spell that makes him fly or rather make a platform under his feet so he can float in the air. He arrives near Sirzechs that holds Behemoth with his Power of Destruction. Without saying anything, he appears on top of Behemoth's head and points his sword at its head. He pushes his magic into the sword, and the sword glows brightly before shooting a laser beam that has the color of a rainbow.

Seeing his attack, Behemoth dodged Kojiro's attack by moving its entire body using his foot. After dodging his attack, Behemoth fired a lightning bolt at him, but he successfully dodged it. However, before he could attack the Behemoth once more, It clapped its hand and created a shockwave that threw Kojiro away from the Behemoth.

A second later, he looks at Behemoth that claps its hand once more, but this time its clap doesn't do anything. However, a second later, he feels the ground beneath him is shaking and suddenly opens up and shoots a torrent of fire from it. He dodges the fire, but as he dodges it to the left, another torrent of fire coming from his right side. As he dodges the two pillars of fire, Behemoth twists its hand a little, and suddenly the pillar of fire turns around toward him. He continues to dodge the fire for at least half a minute before the fire disappears. He looks at Behemoth, who is fighting both Falbium and Sirzechs.

Seeing Behemoth busy with Falbium and Sirzechs, Kojiro picks up another weapon from his Pocket Dimension. While his Sword Canon has more punch but it has a short-range. He then picks up the second weapon he created in his free time.

The gun in front of him has the same appearance as the 'Big F*cking Gun' in the Doom game. He calls it Pew-Pew 900. This gun will fire a ball of antimatter toward the enemy. The antimatter is coming from the use of a Kaleidoscope he uses to fuel the weapon. The weapon also has an aftereffect of anti-magic, making the one that is hit by it will die and cannot be regenerated using magic. Sadly this weapon has a cooldown every time he fires the weapon.

Kojiro pushes his magic into the weapon, and the color of the weapon begins to change into the color of the Kaleidoscope. After a few seconds of charging, the weapon fires a pitch-black ball toward the Behemoth.

Behemoth, while busy fighting both Falbium and Sirzechs, Behemoth still sees the incoming ball of destruction. Behemoth tried to dodge, but it was too late as the ball of destruction hit its left hand and exploded.

*BOOM*

Kojiro sees the entire left body of Behemoth is gone because of the ball of destruction. Even half of Behemoth's head is gone by the blast of his cannon. He looks at Behemoth's unmoving body and sees a shiny ball on the right side of Behemoth's waist. He begins to run toward Behemoth and tries to destroy its core and end this fight. However, before he could get close enough to Behemoth, It began to roar loudly, creating a shockwave that threw Kojiro away. When he got up, he saw Behemoth's body begin to heal itself. However, it was more slow than usual. He guesses Behemoth Regeneration is not because of its magic but rather healing energy that it has to recover itself. Luckily, the Regeneration is not as fast as the combination of its magic and Healing energy.

Knowing Behemoth sometimes needs to regenerate, Kojiro uses his full speed and appears in front of Behemoth in an instant and activates his new technique that he copies from the other anime. He summons Monohoshi Zao from his pocket dimension.

"Hien"

When he knows that he has wind as his element, he begins to try to recreate some techniques he sees in the anime, including this 'Flying Swallow' from Naruto. With this technique, his sword reach doubled, and its slicing power increased.

After arriving in front of Behemoth, Kojiro jumped up high in the air with his sword raised above his head. However, before he could swing down his sword, Behemoth raised a fire pillar all round him. Seeing the fire, he pointed his sword at the pillar in front of him and thrust his sword.

"Suzumesashi"

Kojiro quickly thrust his sword toward the pillar and created four sword thrust in a second and created a hole in the pillar. When he gets through the fire pillar, he sees Behemoth already charging a bolt of lightning in front of its mouth.

"Shit"

Behemoth then fired the lighting toward Kojiro. However, before the lighting could hit him, a barrier with a purple color appears in front of him, blocking the lighting. He looks to the side and sees Falbium floating near him.

Seeing its lighting not working, Behemoth tried to punch him, but before Behemoth could punch him, a black tentacle appeared all around Behemoth locking its movement. Kojiro knows that it is Sirzechs power that locks the Behemoth movement. Without hesitation, He swung down his sword and cut the left side of Behemoth that was still weakened by his previous attack. After cutting the left side of Behemoth, He can see the core of Behemoth once more. However, before he could touch it...

"ARRRRGGGGHHHH"

...Behemoth roared once more, creating a shockwave powerful enough to throw them away from Behemoth. After getting thrown off toward the nearest hill, he slowly gets up and sees Behemoth look at the town. Behemoth raises its hand and grabs the body chunk that he cut earlier then throws it in the city. Knowing what Behemoth will do, Kojiro runs toward the city with his sword cannon in his hand and begins charging.

Behemoth body glows red, and the body chunks that fly toward the city begin to glow as well. This is another power of Behemoth that makes a part of its body to become a super bomb that can destroy a country in a single blast.

After finishing charging, he fires the Sword Cannon, and when both attacks collide, it causes a huge explosion high in the air. He stabs his Sword Cannon to the ground and holds his ground as the explosion causes a massive shockwave.

After the explosion finished, he looked at Behemoth's previous location and saw that Behemoth was gone and in its place was a volcano spewing lava. Seeing Behemoth is gone, Kojiro sits down on the ground and releases a relief sigh. They successfully defeat Behemoth as it escapes through the volcanic vent it creates using its power.

The first Endbringer fight is finished.