Chu Ching Yu, known professionally as Rainie, is a Taiwanese singer, dancer, former member of BUGABOO (버가부; stylized as bugAboo), and current member of PRIMROSE (프림로즈). She is on a leave of absence from Janggyeong High School.

She made her debut in October 2021 as BUGABOO's lead vocalist with their single album, also titled "BugAboo". The group was created by producer and CEO of A Team Entertainment (A team 엔터테인먼트), Ryan S. Juhn. Originally, they were set to debut in early 2020, but the COVID-19 pandemic and financial issues delayed their debut until late next year.

However, they still faced a lack of promotion and almost no opportunities to perform on major networks. They had a comeback 8 months later with their second single album, "Pop", but, once again, went on a prolonged break without any new material after the promotional period ended. Finally, A Team decided to disband the group in December 2022.

She switched agencies and signed with AO Entertainment (AO 엔터테인먼트). She then re-debuted in September 2023 when she joined PRIMROSE as their new member with their second mini-album, "Laffy Taffy". The group debuted in January as a duo. However, member Yeum had to leave in March due to health reasons. The agency decided to expand the group, and she was selected after several auditions.

(Source: MyDramaList) Edit Biography