WizarD (ON ˚Z 의 마법사) is a trainee group under WD Enterainment. On October 21, 2020, WD Entertainment announced that their girl group Whiteday would disband following the departures of Yujung and Jihye. As a result, White Day Project was also dismantled. Oh Eunji was the only member of Whiteday to remain with the agency, while White Day Project members Hayoung and Dohyun also remained with WD Entertainment. However, through Eunji's departure letter, it was revealed that the agency plans to debut a new group which will include Eunji. In February, 2021, WD Entertainment opened a Twitter account to reveal their trainees who are now part of a new trainee group, known as WizarD. The first five trainees were all revealed on February 15, starting with Eunji, Hayoung, Dohyun, Sooyeon and Dana, while Sumin was introduced on February 17.