Shunsuke Sakurai, about to graduate from college, happens to go to Ho Chi Minh City, Vietnam.
There, he meets a girl named Sen, who is his cousin.
Shunsuke wonders what he can do to help Sen, who has been left all alone in the world, and comes to a conclusion.
The story of their delicious relationship, colored by the gentle and vivid Vietnamese cuisine, begins, begins, begins.