Strongest Sage with the Weakest Crest 21, The

In this manga adaptation of the popular light novel series, one boy will stop at nothing to be the world’s strongest…not even refining rubble!
With the Boseil dungeon monster overflow sorted, Matthias gets down to business creating some jobs for his domain. The long-neglected dungeon may have created a lot of trouble, but it also yields great benefits, allowing Matty to incorporate his passion for resource harvesting and dungeon demolition into a new industry for Boseil. Once known for its delectable cuisine, Boseil will now be known for refining the finest metal ores!
Story Locale: The fictional Kingdom of Eis (alt medieval Europe) Series Overview: The world’s strongest sage will stop at nothing to achieve greatness…not even reincarnation! But while his rebirth goes better than he could have hoped, Matthias lands in a world where no one recognizes his potential. Now it’s up to him to prove everyone wrong!