in your game save folder depends on your system.
windows : C:\Users\your_user\AppData\Roaming\Godot\app_userdata\High School of Succubus\saves
linux/mac : ~/.godot/app_userdata/high school of succubus/saves or ~/.local/share/godot/app_userdata/high school of succubus/saves
rooted android : /data/data/org.godotengine.highschoolofsuccbus/files/saves
on android you have normaly no access to the save folder. you first need to root your system there, but this has some disadvantages like loosing your garanty, decreasing your security and some apps could refuse to work.