Exo band member Sehun spoke up against the sasaeng fan claiming to be his girlfriend online, reported Allkpop.com.
Recently, a sasaeng fan has been leaking Sehun's private information online and claiming to be his girlfriend.
The information was then spread through an anti-EXO Facebook page, who has since then pulled the post down.
In reply, Sehun posted, "Who are you? Do I really have to go this far..." with the above black image onto his Instagram.
Whether the post is meant for the sasaeng fan or the Facebook page is unknown, but it seems Sehun was upset enough about the situation to post about it.