Udon Kamono 
Mapping: The Trash-Tier Skill That Got Me Into a Top-Tier Party (Manga) Volume 1 [EPUB ebook] 

Note used to dream of becoming a top-tier adventurer, but now he spends his days drinking away his profits at the local tavern and reminiscing about the past. Funny a boy with the Mapping ability could get so lost, huh?
That’s right. Note’s dreams of becoming a big name in adventuring died the day he pulled the infamous trash-tier skill Mapping. Who wants to adventure with someone who has such a worthless ability? Wait… the renowned dungeon-diving party “Arrivers” does? WHAT?!
Get your gear packed, because Note has a whole new life to navigate now!