In a small park on a hot summer day, Tang Yuqi and Tang Yu sisters were playing happily, but the peace was broken by a little boy. A little boy bullied Tang Yu, causing a conflict. Tang Yuqi was injured while protecting her sister. This caused Tang Yu's dependence and desire to protect her sister to explode, and she even threatened with a knife.
After that, Tang Yu's feelings for her sister became stronger and stronger, far beyond the ordinary sisterhood. From wanting to take a bath together to asking about the meaning of "like", Tang Yuqi felt deeply uneasy. After consulting a psychiatrist, Tang Yuqi thought that it was the past suffering experiences that made Tang Yu mistake dependence for love.
Tang Yu is a puppy that barks only for Tang Yuqi.
Concept: forbidden emotions