As for the Tien Shinhan, what's the story behind it?
Actually, the matter is quite simple. Ever since Tien Shinhan witnessed the power of Frieza and the other aliens, he has begun to worry about the survival of Earth. Admittedly, Earth is currently protected for the time being by the presence of Son Goku, Padas, and Kast!
But what about the future? We can't rely on them all the time, can we?
So Tien Shinhan thought that he wanted to change this situation, and there was only one way to do that: make martial arts popular on Earth!
That is, practicing martial arts!
But the first thing you need to learn martial arts is financial resources, the second is location, and the third, and most important, is having a good teacher!
After all, financial resources are not a problem. Tien Shinhan's savings over the years, as well as the prize money he won in the World Martial Arts Tournament, can cover the initial capital!
The location is also not a problem; we can just find a hilltop and set up a temple.
However, there's nothing he can do about teaching. Although he's quite capable, he's not good at teaching.
However, although he's not really good at teaching now, he does know people who are!
And that person, no doubt, was none other than Master Mutaito!
As the god of martial arts and the founder of Turtle School, Master Mutaito's teaching philosophy is undoubtedly outstanding.
Upon thinking of Master Mutaito, Tien Shinhan immediately sprang into action, and he and Chiaotzu rushed to Turtle Island to find him and ask for his help!
After Tien Shinhan arrived at Turtle Island, he sought guidance from Master Roshi Tien Shinhan, Master Roshi readily agreed to help him.
However, Master Roshi told him that he couldn't directly help Tien Shinhan with his teaching, since Master Roshi's personality made it impossible for him to stay elsewhere and be restricted.
Furthermore, he has very high requirements for the qualifications and character of his students; he prefers elite teaching to mass education.
However, Tien Shinhan was clearly aware of this as well. His ultimate goal in coming here was not to persuade Master Mutaito to come out of retirement, but simply to take this opportunity to learn from his experience in this area.
Under these circumstances, Master Roshi let Tien Shinhan stay at his house temporarily and slowly teach him about this.
This led to the situation where Krillin hadn't had time to contact Son Goku, Kast, Bulma, and the others before Tien Shinhan arrived first.
As for what exactly happened with Krillin, that remains to be seen.
Actually, it all started a year ago with the Frieza incident!
It's worth noting that Frieza brought two henchmen with him when he found Son Goku.
They are Bella and her Bess!
At the time, Krillin and Tien Shinhan defeated them but did not kill them. The reason was that Master Mutaito later discovered that they had been brainwashed by Frieza and were following him in doing evil!
The reason is that they were originally twin powerful warriors from a planet that Frieza was attacking!
Because of their outstanding strength, and because Frieza Army was too weak at the time, he thought of capturing them and brainwashing them to become his subordinates!
This can actually be seen in the original work, where Frieza wanted to recruit Son Goku as his subordinate!
In fact, Frieza has done this more than once; almost all the kind, righteous, and powerful individuals were brainwashed into becoming his subordinates! Others, who were inherently evil, were attracted by Frieza's evil and willingly became his subordinates.
That being said, they wouldn't have done this before Frieza and his crew's ancestral planet was attacked by Padas!
Before that, they won't waste time absorbing those who resist them!
However, after Padas attacked Frieza planet, the remaining Frieza Army was still attacked by Padas from time to time. Although Padas was too busy in the Demon Realm to search for them in the following years, Frieza Army still suffered heavy losses during this time!
In the following years, they remained almost entirely in the shadows, lying low.
Of course, lying in wait doesn't mean there's no action whatsoever!
After all, they couldn't support such a large army if they didn't come out to hunt!
The victims of Frieza's first operation during his incubation period were none other than Bella and his sister's planet!
Well, to put it another way, it's because their planet's location is really bad; it's just too remote!
This also leads to a situation where, with no nearby planets, they become the most vulnerable targets for attack.
So Frieza Army, this evil legion born from space pirates, seized the opportunity to attack the planet and capture the two men!
He then brainwashed them into becoming his subordinates!
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