Superman's Saiyan little brother

"I'm here!" As soon as Jonathan finished speaking, Clark shouted and ran over. Despite some distance from his parents' room, his super hearing allowed him to catch every word of their conversation.

Yes, Clark had been eavesdropping all along, which was his way of joining the family meeting in disguise.

"What are you doing here?" Jonathan pretended to be angry and glared at Clark.

Of course, Jonathan and Martha were well aware of Clark's super hearing. They simply didn't allow the young Clark to voice his opinions in the family meeting, but eavesdropping was tolerable.

And Jonathan had just mentioned Clark because he wanted Clark to come over and check on the baby.

"Hey, hey, I came to see my brother's tail. Oh, I just gave my brother a name, Robert, Robert Kent. What do you think?" Facing the addition of a new brother, Clark was somewhat cheeky, finally behaving like a twelve-year-old child.

"Robert Kent? That's a good name, but as you heard, since you've named him, you need to take the time to properly take care of him, understand?" Jonathan and Martha exchanged a glance, not objecting to the name but seriously telling Clark, "This will let you know how hard it is to be a parent!"

"Mom, Dad, you've worked hard. From now on, I'll take care of Robert!" Upon hearing this, Clark's face turned serious as he loudly promised, then timidly added, "Then, can we not cut off Robert's tail? It's part of his body, and cutting it off would definitely hurt. Plus, I've found that his tail is more vigorous than his limbs; it might even grow back if cut off. Let's not make him suffer..."

"Alright, we'll listen to you. But now you have an additional task. Not only do you need to protect yourself and not reveal your powers, but you also need to protect Robert and keep his tail from being discovered. Is that okay?" Jonathan sighed looking at Robert's tail, then instructed Clark.

"Mission accepted!" Clark solemnly promised, patting his chest.

"Alright, you can go to sleep now. I'll take care of the adoption procedures tomorrow. Martha, you sort out Clark's old clothes. Good thing we haven't gotten rid of them yet..." Jonathan waved his hand, sending Clark away again.

Thus, Robert became a new member of the Kent family. With this brother, Clark became much more cheerful, spending his free time taking care of Robert. Despite many embarrassing moments in childcare, Clark enjoyed every bit of it.

However, as time passed, Clark began to feel puzzled because Robert, as he grew, seemed somewhat dull. Other than performing basic human functions, he barely spoke, behaving like a robot following a set program, even when bullied.

Clark wondered if Robert was like his younger self, hiding his anomalies for fear of being discovered. But after close observation, Clark realized that wasn't the case with Robert...

Fortunately, thanks to the Kent family's careful instructions, Robert's tail was never discovered.

...

Fifteen years later, when Clark was twenty-seven and Robert was fifteen, Robert gradually regained his consciousness.

"This place? A new world? Have I transmigrated again?" Sitting on a haystack, Robert's eyes flickered with confusion as fifteen years of memories slowly merged with his memories from before transmigration.

"Wasn't my wish to have the ultimate potential, to develop my strength step by step? How did I transmigrate again?"

It turns out, Robert wasn't new to transmigration. He was once a typical adolescent teenager on Earth, obsessed with Dragon Ball and fervently collecting Dragon Ball figurines. In an era without online shopping, he spent a significant amount of money at a street stall to buy seven well-crafted Dragon Balls.

Before Robert could hide the Dragon Balls from his mother and calculate the cost per Dragon Ball, the glowing orbs transported him to the Dragon Ball world.

Upon entering the Dragon Ball world, Robert wasn't panicked. For a righteous adolescent teenager, entering his favorite world was a dream come true!

Thus, Robert embarked on adventures in the Dragon Ball world, becoming friends and rivals with Goku, growing step by step.

Unfortunately, Earth's Dragon was limited in power and couldn't grant Robert Saiyan blood. In the end, Robert chose to have the Dragon maximize his body's recovery capabilities.

This ability allowed Robert to have more energy and time for training, keeping up with Goku's pace of improvement, even surpassing him at times.

Although Robert defeated Krillin but lost to Master Roshi in his dragon form at the 21st World Martial Arts Tournament, he went on to defeat Master Roshi, Tien Shinhan, and Goku in the 22nd Tournament, claiming the championship.

However, at the 23rd Tournament, despite not slacking off, Robert beat Kami but lost to Piccolo Jr...

As Earth faced crisis after crisis, Robert worked even harder, becoming the strongest Earthling among the Z Fighters, surpassing even the Namekian Piccolo, but still lagged far behind Goku and Vegeta.

With the appearance of Beerus and other powerful beings, along with the Super Dragon Balls and Black Star Dragon Balls, Robert reignited his wish.

Eventually, Robert found the Super Dragon Balls and made his wish.

Unlike Jaco and Granolah, who foolishly wished to become the universe's strongest warriors, Robert, who had lived in the Dragon Ball world for years, maintained his earnest desire to grow stronger. He saw wishing to be the universe's strongest as an insult to a true warrior.

Robert chose to have the Dragon grant him the ultimate potential, wanting to develop and enhance his strength step by step, to catch up and surpass Goku and Vegeta. But what Robert didn't expect was to lose consciousness after hearing the Super Dragon's declaration of wish fulfillment, only to arrive in this new world, merging his memories just moments ago...