As a member of Lovely Doll, Koike gained experience performing in concerts, TV shows, and music videos. However, she eventually decided to pursue a solo career, which allowed her to explore her own musical style and acting abilities.
Koike's interest in acting and singing began when she was just a child. She started taking singing and dancing lessons at the age of 10 and soon began performing in various stage productions and music events. Her big break came in 2011 when she joined the Japanese idol group, , which was formed by her agency, Amuse . emiko koike
In addition to her acting work, Koike has also pursued a music career. She released her debut single, , in 2017, which was followed by several other singles and EP releases. Her music style is a fusion of pop, rock, and electronic elements, showcasing her versatility as an artist. As a member of Lovely Doll, Koike gained