They claimed that he had legally changed his name from Yoon Byung-hwi, and used to badly bully his classmates when he was in school.
They also posted pictures of Yoon Seo-bin in a pub when he was a minor, smoking a cigarette while wearing a school uniform, and so on.
Shortly after this started spreading to different online communities, JYP Entertainment and Mnet stated that they were looking into it.
The agency said, "We have decided to terminate our contract with Yoon Seo-bin after concluding that he is not a good fit with our company. As a result, he will automatically be stepping down from 'Produce X 101'."
Later, Mnet also confirmed this and added, "We plan to edit him out as much as possible on future episodes that have already been filmed."
(Lee Narin, Credit= Mnet Produce X 101)
(SBS Star)