The sister's painting and dad's key, both of these plot items only increased the plot exploration by 1%.

However, this eyepatch alone provided a 10% increase in exploration.

Based on the experience from the previous dungeon, the eyepatch might play a decisive role.

Gu Yi put on the eyepatch again, but nothing happened. Not daring to take any chances, he kept it close, unsure when it might come into play.