How did Tuti and Yuki become stars on Tiktok?

We are two sisters who stumbled upon Tiktok in August 2019. Out of curiosity, we downloaded it. We were just scrolling through and came across a “petswave” trend. We found it cute, and thought of trying it out. Within a few minutes of posting, there were already views, likes and comments. By the next day, it was already 20,000 views.