Usui Aika has graduated from Ebisu?Muscats.

On her Twitter account, Usui wrote, "As of today, September 22, I have graduated from Ebisu?Muscats. I will go back to the beginning and start over. Please watch over me." 

On the reason for her graduation, a message on the group's official website states, "She requested to withdraw from the group due to personal reasons."

Source & Image: natalie