Karasu and Amei had a 'friends-with-benefits' relationship. When Karasu suddenly says he wants to go to Hawaii, Amei takes him to the town of Hawaii. They arrive at a small house in a small town. It was the house where Amei lived with his mother, who had left him when he was a child. The man who tries to smile even though she left him behind, and the man who is not good at facing himself, are at the mercy of their own feelings, which are gradually growing ?