1UP writes: "It's a match-three puzzle game in the style of Bejeweled. But with a twist! Namely, fantasy trappings. So, basically it's Square's answer to Puzzle Quest.
Japanese mobile games are a mysterious realm for us foreigners, coming and going with little information. So who knows if this is actually new? But it's new to us, and by golly, that's good enough.
If you like Puzzle Quest, you'd probably at least somewhat enjoy Demon Chain. While it doesn't seem to offer the same faux-RPG mechanics or superspell attacks, it does have the same fantastical trappings. (Though they're better looking; the characters looked like they stepped right out of a SaGa game.)"