Simply paste the patch.xp3 file into the main game folder (where the .exe is) . Commonly Used Tools
arcusmaximus/KirikiriTools: Tools for the Kirikiri visual novel engine patch.xp3
Useful for packing files back into a patch.xp3 . Simply paste the patch
Used to extract content from existing XP3 archives and dump scripts . patch.xp3
Overwrites files (like scenarios, images, or audio) within data.xp3 to apply changes .
Popular tool for unpacking, viewing, and repacking .xp3 files .
Copy/paste the patch.xp3 file in the directory of the game: C:\Program Files\Steam\steamapps\common\Trajectory of summer flower. Steam Community