Save data is managed through the system’s internal storage settings and cannot be accessed as individual files without homebrew software. Why You Might Need a 100% Save File

The 2021 remake uses a modern engine (likely Unity or proprietary), and its save structure is more uniform across platforms.

A 100% save allows you to immediately access the "Flowchart" or "Gallery" to re-read specific narrative peaks without manual skipping. How to Install a Downloaded Save

Some versions store them directly in the game's root directory as save1.dat through save20.dat Tsukihime Remake (-A piece of blue glass moon-):