Xiao Ye (Ghanai) traveled all the way to Chiang Mai, Thailand, in order to find her mother Kyoko (Kobayashi), who had abandoned her. However, when she got off the plane tired, she was not greeted by her mother's warm hug. It was a strange young man named Shiwei (Karase Liang). Following in the footsteps of the end of the city, Xiaoya came to the destination of the trip-a hotel with a swimming pool, which is where Kyoko works. In the hotel, Xiao Ye becomes acquainted with the terminally ill but positive and optimistic boss, Ju Zi (Takashi Suko), and a Thai boy who is determined to find his mother but always fails. Looking at the happy appearance of the unrelated people in the hotel, Xiao Ye felt like an outsider, confused and sad constantly brewing in the heart. In the small hotel, around the swimming pool, everyone is bravely facing the joys and sorrows of their lives.