well here's a counter argument. Demon's Souls has more in common with Kingdom Hearts than any wRPG. It's an action RPG with a linear story, a central hub, several worlds you visit with their own backgrounds and stories. Unlike your common wRPG there is minimal power over the story with really only a major choice near the end and there is no conversation system.
edit: furthermore, the combat system that is all about melee combat and locking onto your adversaries has more in common with Zelda than a wRPG.
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