I FINALLY DID IT
IM GOING TO GET A GOOD ENDING
FOR SAERAN
!!!
But I did use a cheat cheat
It you type in google
"Mystic Messenger good end cheat cheat ____"
There will be a cheat cheat for that character
It also says how to get the bad ends
But it's mainly based on
Good ends
https://www.vg247.com/2018/07/06/mystic-messenger-ray-route-walkthrough-endings-days-5-6-7-8-9-10-11-another-story-mode/
That is the cheat cheat for Rays route
The website also has
All the other characters so yeah anyway

BYE 👋
~Jazzy W