Acting actor Yoon Kye Sang, accusing Internet user, Mr.A.

* Writing a large amount of claims that "Yoon Kye Sang evaded tax" on the net bulletin board.

* Writes "Yoon Kye Sang tax evasion" on SNS and attach a hash tag (#).

* A one man demonstration with placard saying "Yoon Kye Sang evaded tax" in the city center of Seoul.