According to media outlet reports on July 15, actor Kim Young Dae has allegedly dropped out from the lead cast of KBS2's 'School 2021'. 

Back in May of this year, Kim Young Dae garnered attention for choosing a lead role in KBS2's 'School 2021' as his next project, after his successful role in SBS's 'Penthouse' series. However, according to one industry insider, "There was an exchange between the two sides regarding a disagreement in what was originally negotiated. As a result, 'School 2021' is currently seeking out a new male lead to replace Kim Young Dae. The candidates have been narrowed down, and the casting will be made soon."

With Kim Young Dae leaving the cast of 'School 2021', the production has now returned to square one with its male lead Kim Yo Han and female lead Jo Yi Hyun. 

Meanwhile, 'School 2021' became involved in a casting controversy back in 2020 as well, when actress Ahn Seo Hyun was reportedly dropped from as the female lead. Actress Kim Sae Ron was up for discussion to fill for the vacant female lead role; however, Kim Sae Ron ultimately decided to turn the offer down.

KBS2's 'School 2021' is expected to air in winter of this year.