Some souls are weak. They are unable to get to heaven themselves, unable to navigate limbo without getting snatched up and dragged to hell by various demons and succubi. That's where the Dividers come in. They are three spirits, one raised from fire, one raised from water, and one raised from air. They are divine protectors, divine beings that divide heaven and hell. Their only purpose is to guide. However, when one spirit comes into contact with a peculiar human soul, he finds himself at risk of breaking one basic rule- a rule that forbids love. Especially with a human.