It is a drama about the nostalgia of an academy instructor who has a secret with a woman he met on the street at night.

One day, Momo who is a young woman met a 40-year-old man named Todo on the street. The two walk hand in hand while singing the children's song "Shoes Ring" and share their bodies. The next morning Todo, groping back memories of last night, saying, "It's like a journey." Knowing the meaning of the word, Momo cries at him silently. It is said that two people, each with a painful past, run away from the world toward the sea.