Books in the Hunting in Another World with series

BIG RISK AND BIG REWARD!Shin and his elf wife Saran are on the search for who’s behind the elf kidnapping cases. A noble is certainly pulling the strings. It’s the only explanation for how well supplied the kidnappers are. In order to investigate the nobles, the two are taking every job the upper crust offers. Then a surprisingly odd request comes from the lord of Sarprast. Now the couple must work with other hunters to take out this big prize!