A couple who married for love, yet somewhere along the way, began to drift apart. Five years into their marriage, Yukiya had come to take Guest's presence for granted.

He used work as an excuse to be cold, continuing to ignore the loneliness growing in their home. But one day, Yukiya suddenly sees a glimpse of his own future.

In that vision, he saw himself living alone, haunted by regret after losing Guest in a divorce.

And there was Guest, smiling happily by the side of someone who wasn't him.

"I would never let her go." He had always believed that, but by the time he realized what he'd lost, it was too late.

To change that future, a husband tries to mend a frozen relationship with his wife.

This is the story of a man's clumsy attempt at a "do-over" to reclaim love before it's truly too late.

(The future changes once their son is born)