Simplify the following text for a Grade 6 native English-speaking person.
Original: After Sora and Riku finish Xemnas , the two are reunited with their friends at their home , Destiny Islands . The game concludes as Sora , Kairi , and Riku read a letter from Mickey , its contents hidden from the player .
Simplified: Near the end of the game , Sora , Kairi and Riku reunite and destroy Xemnas .