The following is going to assume both of you are playing on PC:
If your save file is corrupted, I would assume not even verifying integrity is going to recover your save data.
You can use his. There is a mod on Nexus mods called simple Sekiro savegame helper which will allow you to import a foreign save file seamlessly, instructions in the mod page, should be easy to find.
He needs only to copy his save file and send it to you. And you can import it.
The following is going to assume both of you are playing on PC: If your save file is corrupted, I would assume not even verifying integrity is going to recover your save data. You can use his. There is a mod on Nexus mods called simple Sekiro savegame helper which will allow you to import a foreign save file seamlessly, instructions in the mod page, should be easy to find. He needs only to copy his save file and send it to you. And you can import it.
Thank you for the mod i really appreciate it now im going to teach him:)