I have a feeling the healing song may become Ren's Rosetta Stone for learning this worlds language, which wonderful since we finally need some progression with the main plot point.
@kernozen Considering how much Mary cares for Ren, Vietika told Mary that Ren almost got impaled by the stalactite. Mary might be turning into Scary Mary.
Ok, time to move on to where they can magically understand each other. Just because it is the title, doesn't mean it needs to be the running theme through the ENTIRE manga.
What an idiot hahaha, i've been thinking if its a magical world, a spell or some sort of magical item translation/adaptation something must exist, right???