Lance is a devil punished to guard the gates of Heaven and Hell and to lie to souls to get them into Hell. He can never tell the truth because to do so would mean he will disappear. He has to send one more soul to Hell before he can finally be free from his punishment. For a devil, lying is easy, right? But what happens when the soul of the person he cherishes walks up to the Gates for judgement?

Kanade has a secret – occasionally, she catches glimpses of the future when she touches people. Even though others find her strange and shun her, she tries to use her powers to save people from their painful futures. One day, a boy in her class, Arou, finds out her secret and reveals that he has one too – he can see the past! Although he is startled by her optimistic view of her powers and can’t understand her helpful attitude, the two fall in love. However, several problems stand in their way; with Kanade’s recklessness, a rival for Kanade’s affections who also shares their secret, and Arou’s manipulative uncle standing in the way, can their relationship survive?