Mr. A, an internet user, posted a sentence in the national petition on the website of the Korean presidential office, saying that singer Sung Si Kyung_ has been doing "gaslighting", which is a kind of psychological abuse, since last year. ..

● Mr. A's claim: After changing the profile picture of Messenger, a picture similar to Sung Si Kyung's personal SNS will be posted a few days later. If you post other photos, Sung Si Kyung will post similar photos later. "Why do you do this? Speaking of making a HARIBO cake tomorrow, I think I'll make it and post it," and sent a DM, and the next day Sung Si Kyung made a HARIBO cake and posted it on SNS.