My Unique Skill Makes Me OP even at Level 1

Ryouta Satou gets the surprise of his life when he's suddenly transported into another world and nearly clobbered at the hands of the young, pretty adventurer Emily Brown. This new world revolves around defeating monsters and profiting on whatever they drop—food, money, items, etc. Unfortunately for Ryouta, he has no skills to speak of...until he learns he has the ability to get rare drops! Suddenly his luck turns around...or does it?

(Source: Kodansha USA)