Synopsis

Based on a novel by Hase Seishuu.
 
Half a year following an earthquake disaster in Sendai City, Kazumasa (Takahashi Fumiya), a young man who had lost his job, meets Tamon, a dog who lost his owner in the earthquake. He decides to take the dog in to look after him, and Tamon quickly becomes an indispensable part of his family as he also grows attached to Kazumasa. However, Tamon always seemed concerned about something in the southern direction.
 
When Kazumasa gets involved in a dangerous incident, Tamon disappears. Time passes, and it turns out Tamon is spending time with Miu (Nihshino Nanase), a woman who harbors a sad secret. By spending time with Tamon, Miu gradually regains a peaceful life, but Kazumasa, who had chased after Tamon, materializes in front of Miu. Reunited with Tamon, Kazumasa, Miu and Tamon begin to spend a new life together, but despite his weakened state, Tamon continues to head south as he holds onto a promise he wanted to keep to a young boy.