How do you unlock Renallas chest?

How do you unlock Renallas chest? You can find the Baleful Shadow to the west of the Nokstella, Eternal City Site of Grace at the bottom of a tower. After defeating the Baleful Shadow, you will finally receive the Discarded Palace Key. Now you can return to the Raya Lucaria Academy and open the locked chest near Renalla to obtain the Dark Moon Ring.

You can find the Baleful Shadow to the west of the Nokstella, Eternal City Site of Grace at the bottom of a tower. After defeating the Baleful Shadow, you will finally receive the Discarded Palace Key. Now you can return to the Raya Lucaria Academy and open the locked chest near Renalla to obtain the Dark Moon Ring.