BY2 sisters, Miko and Yumi, were once a household name in the entertainment industry with their catchy tunes like "Love Love" and "A Little Sweet". However, they have since changed their names to Sun Huan and Sun Yu respectively. This change has left many fans wondering why they would do such a thing.

According to reports, BY2 decided to change their names after their contract with their previous record label expired. They went on to establish their own production company and announced that they would be starting fresh with new identities.

The decision was met with mixed reactions from fans who felt that the new names were too ordinary for two talented artists. In the world of show business, an artist's name can make or break them, as it often determines how well-known they are and how successful they become.

Meanwhile, rumors of a romantic connection between BY2's former member Liang Jialei (now known as Li Shanshan) and Chinese singer Wang Likun have been circulating online. The rumors claim that there was some sort of inappropriate behavior towards Wang Likun by Liang Jialei when she was still part of BY2. Although these claims have not been proven conclusively, it is clear that the relationship between BY2 members past or present remains shrouded in mystery.

In conclusion while we may never know all the details behind BY2's name change or any potential romantic entanglements within the group; one thing is certain - both changes have had a significant impact on public perception of this once beloved duo.