Simplify the following text for a Grade 14 native English-speaking person.
Original: The game picks up after the events of Kingdom Hearts II , focusing this time on King Mickey , Donald , Goofy and Jiminy Cricket , who discover a mysterious sentence in Jiminy 's journal and subsequently digitize the journal 's contents to find the one responsible .
Simplified: The game picks up after Kingdom Hearts II , focusing this time on King Mickey , Donald , Goofy and Jiminy Cricket , who discover a mysterious sentence in Jiminy 's journal and then digitize the journal 's contents to find the one responsible .