Perhaps because they had talked for so long, Bora decided that Yinsen and the others were not bad people and took the initiative to bring up the Dragon Balls.
As the guardian of Korin Sanctuary, Bora did not know much about the outside world. He did not understand why this ball had attracted those people.
Yinsen explained the Dragon Balls to Bora, and Yamcha also noticed that Bora was holding the Four-Star Dragon Ball Goku had been looking for.
"It's the Four-Star Dragon Ball. Should we send Goku a message?"
"Let's notify him."
There was no reason to find the Four-Star Dragon Ball and not tell Goku.
As they continued talking, Bora learned that the ball in his hand was something Yinsen and his companions had been searching for. Since it was useless to him, Bora prepared to give it to Yinsen.
"I've already sent a message to my friend. He'll be here soon, and you can give him the Dragon Ball then... Oh, right, he's still a young kid. His name is Son Goku."
To avoid any confusion, Yinsen described what Goku looked like beforehand. Bora also agreed to give Goku the Dragon Ball when he arrived.
After that, Yinsen rested. He needed to recover his energy and strength so he could challenge Korin Tower again the next morning.
After a good night's sleep, he woke up feeling completely refreshed. Long-term training had greatly improved his recovery. He had been exhausted to death after climbing Korin Tower the day before, yet one day of rest and one night of sleep had fully restored him. No matter how he looked at it, his body had already surpassed the level of an ordinary person.
"Come on, round two begins!"
Yinsen did not immediately start climbing. He ate first, drank some water,