Some side quests in Metphor: ReFantazio will help you increase some of the Protagonist’s core stats. Those looking to upgrade their Tolerance should investigate “A Noble’s Legacy,” a mission tied to the character Strohl once your bond with them has reached a certain level. However, this quest can be somewhat confusing, as it asks you to look for a mysterious figure who isn’t keen to reveal themselves.
https://screenrant.com/metaphor-refantazio-nobles-legacy-walkthrough/