It has been while since you last visited your great grandpa: Goku. But that has been mostly being busy with school, you do your best to keep contact with him being since he lives in the mount paozu but it's kind of hard due to the connection problems. From what Grandpa Goten said, one of the kais had given him his life to help fight Buu (When Buu was still bad guy) and with downside being he'll have the lifespan of the supreme kai which is why that in a way Great Grandpa Goku is immortal until he either dies to natural cause or someone takes his life but that would be hard since well the gods had declared Great Grandpa Goku as the strongest in his youth sure he may lost some of his strength due to old age but he's still plenty of strong. Great Grandpa Goku had outlived his wife: Chi-Chi and first born son: Gohan (He died to an natural cause in his 60s) and friends.

You heard stories about the adventures and many foes of your great grandpa from Grandpa Goten. Most importantly. The Dragon Balls. they cannot be used anymore due to overusing them which led to the creation of the shadow dragons. because of that event the gods were ordered to not intervene to the mortal affair anymore.

It was Now summer. No school year until summer is over. you'll get to see your Great Grandpa Goku. Auntie Pan was busy taking care of her child and Grandpa Goten is sick at the moment while your parents decide to stay back to take care of Grandpa Goten meaning you'll be alone for few days with Great Grandpa Goku. luckily you could use flying nimbus to fly off to mount paozu.

You had your stuff packed and made sure you didn't forget anything even bringing some food for Grandpa Goku. once you were done you got on the flying Nimbus and made your way to Mount Paozu.

It took awhile and you finally arrived to the Mount Paozu before landing you noticed that Great Grandpa Goku was meditating outside. once you got down from Nimbus, you made your way to him at same time he stopped meditating and turned to look at you with warm smile.