Old Kai

As massive explosions rang out, energy waves burst across the sky.

"Whoosh..."

Mechickabura flashed and appeared before Son Goten in the blink of an eye, thrusting his staff forward with his right hand.

Son Goten flashed and appeared behind Mechickabura.

Startled, Mechickabura hurriedly turned around and saw a fist flying toward his face.

Mechickabura was immediately sent flying backward like a beam of light.

Taking advantage of the moment, Son Goten swiftly brought his hands together behind him.

"Ka~me~ha~me~ha!"

A deep-blue energy wave gathered in Son Goten's hands and shot toward Mechickabura.

Mechickabura was greatly alarmed. It was already too late for him to dodge.

Boom!!

With a deafening blast, the Kamehameha struck Mechickabura and shoved him backward.

Then, with an incomparably massive explosion, the Kamehameha detonated in the sky.

An enormous storm arose and swept outward in every direction.

Son Goten gathered his ki and formed a translucent barrier around himself, blocking the fierce winds.

After a while, once the explosion subsided, the system's voice suddenly sounded beside Son Goten's ear.

"Ding! Congratulations, Master, on defeating Mechickabura. You have learned Dark Body, Dark Ki Blast... Darkness Devour."

Son Goten immediately looked ahead.

As the thick smoke gradually dispersed, Mechickabura's figure slowly emerged.

Mechickabura panted heavily. His clothes were torn in many places, and he looked utterly miserable.

"An immortal body?"

Mechickabura had devoured quite a bit of history, so his body might already have become immortal.

Mechickabura did not answer. Instead, he raised his staff and fired an energy wave at Son Goten.

Son Goten shifted to the side and dodged it with ease.

Just then, Time Patrol Son Goku arrived with Kaiin and the others.

Time Patrol Son Goku said, "Goten!"

Son Goten nodded and reverted to his normal form.

"Since you're here, I'll leave this guy to you!"

"Wait!"

Kaiin called out to Son Goten with an extremely serious expression.

"What is it?"

"Who exactly are you? Why can you travel through time and space?"

"I'm Son Goten. As for why I can travel through time and space, I can't tell you that. Until we meet again!"

After saying that, Son Goten immediately opened a time-space gate and left the Dark Demon Realm.

"Supreme Kai, should we go after him?"

Time Patrol Gohan asked.

"No. Let's deal with the guy in front of us first!"

Upon hearing that, Time Patrol Son Goku and the others immediately turned toward Mechickabura.

"Supreme Kai!"

Mechickabura gritted his teeth tightly.

Afterward, the Time Patrol fought Mechickabura in an intense battle.

In the end, Mechickabura was permanently sealed away by the Time Patrol using the Key Sword.

The main timeline.

After returning to the main timeline, Son Goten had nothing to do at home, so he borrowed Gohan's Kaioshin Sword.

At that moment, he was wielding the Kaioshin Sword on the back mountain.

After swinging the Kaioshin Sword for a while, Son Goten transformed into Super Saiyan 4, gripped the blade tightly with his right hand, and bent it outward.

"Crack..."

With the sound of a sword shattering, the Kaioshin Sword broke in half.

Son Goten looked around and found nothing.

After a while, an old man wearing Supreme Kai robes suddenly appeared behind Son Goten.

This man was Old Kai.

As if sensing something, Son Goten turned around and saw the hunched-over Old Kai.

"Were you the one who freed me?"

Old Kai asked.

"Yeah!"

Son Goten nodded.

"What's your name?"

"My name is Son Goten!"

"Son Goten!"

"Then how did you know I was trapped inside the sword?"

"Lord Champa told me!"

"Lord... Lord Champa? Do you mean the God of Destruction from Universe 6?"

"Yeah!"

"Then how did you obtain the Kaioshin Sword?"

After hearing that, Son Goten immediately told Old Kai about Majin Buu.

When Son Goten finished, Old Kai looked at him calmly.

"I see. So that means it was actually your older brother who pulled out the Kaioshin Sword?"

"Yeah!"

"This is troublesome. My original plan was to repay the person who pulled out the Kaioshin Sword!"

"Repay?"

"Of course. I'm a Supreme Kai, after all. I know how to repay kindness!"

"Are you strong?"

"Of course!"

"Then how about fighting me?"

"Cough, cough!"

Old Kai coughed.

"What I mean by strong isn't the same as what you mean by strong!"

"It isn't?"

"What I mean is that my ability is formidable. I can raise a person's strength beyond their limits. Do you understand what it means to surpass your limits?"

"Oh, then can you fight me?"

"..."

Old Kai was speechless.

"I already told you, I'm not good at fighting. My abilities are what's impressive!"

"It's fine, Old Kai. I won't use my full strength!"

"..."

Old Kai was speechless again.

Is this even a matter of whether he uses his full strength?

"Goten, look at me. I'm already an old man. Do you really think I can still fight you?"

"Why not? Master Roshi can still fight my dad!"

"Who is Master Roshi?"

"My dad's master!"

Old Kai looked at the innocent-looking Son Goten. Having no way to deal with him, he could only agree.

"Fine, fine. But I'm already just a bag of old bones, so you can't hit too hard!"

"Okay!"

Son Goten nodded with a smile.

Seeing Son Goten's smiling face, Old Kai had already made up his mind to surrender immediately once the battle began.

"Then, Goten, go ahead and attack me!"

"Okay!"

The instant he finished speaking, Son Goten drove his right fist hard into Old Kai's face.

Old Kai let out a miserable scream and flew backward like a beam of light, crashing into the mountain behind him.

"Ding! Congratulations, Master, on defeating Old Kai. You have obtained Clairvoyance (allows you to watch insects on Earth fight from Kaioshin Planet), learned Godly Instant Transmission... and received an extra reward: a crystal ball (can use magic to see everything in Universe 7)."

"It hurts so much!"

Just then, Old Kai clutched his head with both hands and cried out.

"Son Goten, I told you to go easy on me, but you still hit so hard!"

Seeing this, Son Goten hurried over and took out a Senzu Bean for him.

"Sorry, Old Kai. This is a Senzu Bean. As long as you eat it, your injuries will heal!"

"A Senzu Bean?"

"Yeah!"

Son Goten nodded.