I hit all the right things with parker all the time and it never pops up
just go to the link. heres the steps on how you could get all the cgs in every route or good ending rather. found it on the comments.
https://docs.google.com/spreadsheets/u/0/d/1opecc1Wkh4iUxIYTlF0c5NtbbmmQ_30fIH2b5JXbqUQ/htmlview#