By chance, Lin Chulan gained the ability to travel through various dimensions at will, so she embarked on a journey that was euphemistically called assisting the protagonist (actually a cp). However, she found that there was always someone who looked very much like her sister beside her, a supporting character who was too small to be smaller. The truth of everything was slowly revealed...
Concept: Everything starts with her sister and everything ends with her sister. It all comes from the love between them