Riviere and the Land of Prayer

"Do you really need a reason to want to save your friend?"
This is "Prayer Kurunelvia". This is a small island country where wishes are granted on rare occasions if you pray in the cathedral. Liliere, the owner of an antique store whose business is to lift the curse of "prayer," receives a number of troublesome requests today.
McMillia, who works as Liliere's assistant, meets a girl who hides her true face with a mask. What is her secret?