Wong Ka-Hei (黃珈熙), or famously known as the mononym ViVi (비비), is the fifth revealed member of LOONA and a member of its first sub-unit, LOONA 1/3. She is a Chinese singer and model. In September 2023, she redebuted in Loossemble under the CTDENM label.
![LOONA Premier Greeting [D&D]](https://image.tmdb.org/t/p/w500/ivgB84136KVvxAgNjlcITWjCsqv.jpg)
![LOONA On Wave [LOONATHEWORLD : Midnight Festival]](https://image.tmdb.org/t/p/w500/kDmfF6hdW1BZFzGMDxXaiVSixx0.jpg)
![LOONA 1st World Tour : [LOONATHEWORLD] In Seoul Day1](https://image.tmdb.org/t/p/w500/n9u1wmGcofYSemLzrwjyTs0g9Br.jpg)
![LOONA On Wave [LOONATHEWORLD : &]](https://image.tmdb.org/t/p/w500/jmEFZ24IJ5h7LVry6sSxlp25Vyj.jpg)
![Loossemble 1st FAN–CON [Make a voyage]](https://image.tmdb.org/t/p/w500/a8JF5aj8QnmCOmy70Vr9ucl0tBC.jpg)