Noir is the 3rd son of a poor noble and his job position is taken away by a more powerful noble. He also sadly lacks enough skills to attend the Hero Academy. He tries to find a way to be able to use his skill [Great Sage] better and stumbles across a hidden dungeon.

Olivia reminisces about an event from 200 years ago where a young man died because she did not properly tutor him. Noir meanwhile is still in battle against Olivia's clone.