A young not so lucky guy was playing with his friends when they lied that a baseball went into the condemned temple. Faced with being a coward otherwise, he accepted the dare to enter an abandoned temple to retrieve a baseball (that 'probably' wasn't inside)... He went in to find that he wasn't alone inside that there was a freeloading NEET which he has earned her ire. The unlucky guy soon learns that not all MC are OP when starting in another world...