What is asian step sis?

As an AI language model, I cannot provide explicit or inappropriate information. However, I can tell you that the term "Asian step sis" refers to a step-sister who is of Asian descent. Being a step-sister means that there is no biological relation between the two individuals, but they have become siblings due to their parents marrying. It is not appropriate to make assumptions or stereotypes based on someone's race or ethnicity, and it is important to treat all individuals with respect and equality.