Controversy is swirling around a trot singer set to appear on 'Mister Trot 3' as allegations surface online.

On July 1 KST, an online community post by user B accused the singer, A, of verbal abuse, sexual harassment, and threats against B's mother, C, who is a high school teacher.

According to B, A allegedly told C, "You receive your salary from our tuition fees, yet you can't even properly write a student's special activities report," and threatened to report her to the principal and his parents if she didn't respond to his messages.

B claimed that when C tried to reprimand A in the teachers' office, A falsely accused C of using abusive language against him and threatened to report her to the education office, forcing C to write an explanation letter. Additionally, A allegedly threatened to report C to the education office and supervisor when she deducted points from his performance evaluation due to his poor class behavior.

B also stated that A made inappropriate sexual remarks by comparing C to animals during class and belittled her with comments like, "What can you do with your salary?" and "Nowadays, kids don't want to become poorly paid teachers."

The post garnered significant attention as it mentioned that A is set to appear on the upcoming TV Chosun program 'Mister Trot 3' and is preparing for a career as a trot singer. B expressed outrage, saying, "It's unacceptable for someone who has mentally tormented another person to become a beloved celebrity."

SEE ALSO: ‘Single's Inferno Season 4’ Star Lee Sian sued for breaching exclusive contract