Lin Zhian is trapped on her own isolated island. She doesn't understand the ways of the world and is afraid of crowds and noise. Her parents are struggling to cope with it. Only her sister Lin Xiaohe is her only crossing.
Xiaohe is warm and cheerful by nature, and is willing to be her sister's safe haven for the rest of her life, accepting all her weird habits and tolerating all her silences and uneasiness. The long-term protection breeds feelings that should not be had. They know that blood, disease, and worldly perspectives are high walls that cannot be overcome.
The elder sister will only rely on her alone, and will grab her clothes when she sees her sad; the younger sister will fight against all rumors for her elder sister, selfishly wanting to monopolize this unique closeness. Family and love are repeatedly pulled together, and they embrace each other in an unknown corner, fighting against all the misunderstandings in the world, and being each other's only light.
Intention: The secular world draws the boundaries, and the sincerity creates a world of its own.