Riviere and the Land of Prayer Vol. 3 (manga)

Another day, another dollar at Riviere Antiques. After their run-in with an underwear obsessed vandal at the archives, a stranger request would be hard to come by. Or so they thought, until the Queen of Cururunelvia walked through their door. . ! Now, MacMillia and Riviere are off in search of someone who holds the key to everything—the former queen Marinarise’s misbegotten heir!