Simplify the following text for a Grade 7 native English-speaking person.
Original: Kagome frees Inuyasha so he can kill the centipede demon , but after defeating it , Inuyasha again tries to take the Jewel for himself .
Simplified: Kagome gets the arrow out of Inuyasha when a centipede yokai\/demon attacked her to get the jewel . When Inuyasha does kill it , he tries to kill Kagome too , to revenge on Kikyo ( he thought Kagome was her ) , but Kagome can now control him with Kaede 's magic by saying `` sit ! ''