Azusa lives for only one man: Chika-kun, of the idol group P4U. But when she accidentally dies trying (and failing) to save him, she can't believe her luck—to be in literal Heaven with the man she loves! But never one to lie, God says this one is on him, and sends them both back to continue their lives...but there's just one little problem. Their souls have been sent to the wrong bodies! And not only that—they can switch back and forth by kissing? What on Earth does fate have in store for them?