Let's do a recap. Jupiter had got kicked out of the solar system by the Sun because he had crushed and killed other potential planets billions of years ago. Planet X had came back too.

Anyways.. The Sun was wincing for some reason

Sun: "Oww-! What's this guy-! Ugh!!"

Mercury approached him

Mercury: "Hey Sun, are you okay?"

Sun: "It's just.. Ever since Jupiter left, I've been feeling sick-! Ahh-!"

Mercury: "I've notice some changes too... Venus and Earth have been complaining about their orbits..."

Sun: "...How about you go say hi to Planet X.."

Mercury stutters

Mercury: "Uhm... Okay?"

He started floating away but the Sun shouted:

Sun: "DON'T STAY OUT OF YOUR ORBIT FOR TOO LONG!!"

Meanwhile with Planet X. Saturn approached him

Saturn: "Uhm, hey X... How are-"

Planet X: "Ooh, Saturn... I still can't get over the size of your rings..."

He chuckles angrily

Saturn: "Oh.. uhm, thank you..?"

Time skip. Planet X had sent Saturn away cuz Neptune and Uranus were coming. Since it was getting unbareable, Moon, Titan, Ganymede and Europa decided to go look for Jupiter but didn;t tell Planet X where they were going cuz Planet X HATES Jupiter

Meanwhile with the moons..

Moon: "So... How's it like now orbiting Planet X.. Now that Jupiter's gone..."

The three were quiet

Ganymede: "It's... Okay?? But like... it hurts.."

Moon: "Huh?"

Europa: "Likeeee... When we orbit him, it hurts for some reason!"

Europa rolls her eyes

Ganymede: "How's Earth..?"

Moon: "He's... fine... But he can't keep dodging asteroids..."

They continue to look for Jupiter

(Ganymede and Europa are dating)