DONGKIZ's Jaechan is now facing a huge controversy over school bullying. A netizen made a claim on Twitter, supported by other users, confirming the "Semantic Error" star was a school bully.

As "Semantic Error" came to an end and fans were clamoring for a second season, some were making noise about Jaechan. Allegedly, he used to bully school girls when he was young.

Netizen A claimed, via AllKpop, the 20-year-old star he had been bullying his female classmates since elementary school. He would also antagonize other students, along with his group of bullies and smoked in the classroom.

The revelation came with his elementary and middle school graduation photos. Not only that, though, the netizen added Jaechan also said idol fans were pathetic at the time and talked about other male idols before he became a trainee in the ninth grade.

The netizen even asked others to post a picture of him smoking and holding a wood beam. Other netizens supported the claim, revealing the "LUPIN" hitmaker was the most famous bully among his group and anyone who went to the same middle school as him knew it.

"There are so many anecdotes to support his bad deeds," one netizen commented. His hobby was to bully a junior and take turns.

For starters, this was not the first time Jaecan got involved in a school bullying controversy. When he debuted as a member of DONGKIZ in 2019, an anonymous netizen revealed he was a school bully and had a "trash personality."

The netizen also alleged he continued to post pictures of meeting different girls on social media even after becoming a trainee. From there, he dropped out of high school.

Meanwhile, on a lighter note, fans had been clamoring for "Semantic Error" Season 2, though the drama had a "closed ending." So, what were Jaechan's thoughts about the show's renewal?

He said, via Soompi, that there were many aspects to consider, but he would like to do the show again if the situations aligned. He also believed fans would love the second season more if it would have sweet stories that were not seen in the first season.

Jaechan was also thankful that he had been part of the show and was able to work with Park Seoham, calling their relationship "fascinating." He believed their role as senior and junior in the K-pop world and his height had something to do with their fun banters.