After obtaining the trash skill 'Mapping' I challenged a dungeon together with the strongest party

Story:

From infancy, the young man Note dreamed that someday he would go on an adventure. When he was fifteen, it was time for the "Gift Presentation Ceremony." In the course of which he got the useless adventure skill "Cartography", to put it simply, the "miserable skill". The adventurer's life turned out to be no sugar, and from that day he failed, accumulated like a snowball. "The skill you possess would be useful to us." With these words, Jin, a member of the strongest Arrivals group, addressed him. Thus began the fantastic story of the weakest youth in achieving his fantasies. Note vowed that he would gnaw the ground, but he would get his way.