Who hasn't dreamed of going back to childhood? Hiroshi is a fortysomething salaryman returning from a business trip when he is catapulted back into his fourteen year-old life and body while retaining all the character and experience of his adult self. Will he change his past or be forever condemned to relive each painful moment? That fateful day his father disappeared without explanation, the death of his mother, would he marry his childhood sweetheart so never see his wife and daughters again?