In "The Return of Superman's" official preview of SEVENTEEN's guesting, Joshua and Jun were seen walking adorably with two babies UNTIL CARATs noticed this CREEPY detail.

What's Wrong With Photo: SEVENTEEN's 'Sasaeng' Caught In Official Preview

On May 3, KBS's "The Return of Superman" unveiled more teaser photos for SEVENTEEN Jun and Joshua's appearance in the program.

Earlier on April 28, the two male idols appeared as guests for "Baby Cloud" and their second appearance will be broadcasted on this day, May 5 at 7 pm KST. In particular, they visited F.T. Island Minhwan and former LABOUM's Yulhee's family and became babysitters for their son and twin daughters.

ALSO READ: Former LABOUM Yulhee Updates on Current Status with F.T. Island Minhwan and Kids Following Military Discharge

In the preview then, Joshua and Jun were adorably walking the twins while carrying what seems to be groceries. They seemed happy and enjoying their stroll.

So what seems to be the problem?

While there's absolute "nothing's wrong" with the photo at a glance, CARATs (fandom) truly had goosebumps after noticing a creepy detail in the photo.

Zooming in towards the poles and pillar of the building, a female wearing an all-black outfit and holding a camera was caught in the preview.

The woman, believed to be a sasaeng (obsessive fan), truly gave people the creeps for taking unauthorized photos of the idols in an unofficial event.

But what made people feel the chill was her fan-taken photos were posted on her fansite on March 27, but it was only until April that official information about their guesting was revealed.

CARATs are worried about how the sasaeng was able to obtain the information ahead of official PRs and fans were guessing that there's no other way aside from using their connection of stalking the members even on their private matters.

Netters also raised concerns if what are the things that the fansite might do further to cross their boundaries if Pledis and HYBE won't take action against sasaeng using strict measurements.

CARATs Demand To Ensure SEVENTEEN's Safety Against Sasaengs

As a result, the fandom and a lot of internet users who saw it expressed disgust and fear about the sasaeng's behavior, leaving comments such as:

• "This photo gives me a chill down my spine. I feel so sorry for idols who were constantly under surveillance every day."
• "Imagine seeing photos taken without you knowing. It gonna feels like you are being watched 24/7."
• "Pledis and HYBE should sue them."
• "I can't imagine how idols must have been feeling every time they encounter sasaeng who always invade their privacy."

The fandom is especially making a consolidated list of "sasaeng" fansites on Twitter, while others are calling out the attention of Pledis and HYBE by tagging them in such posts.

Meanwhile, SEVENTEEN is not the only idol who was disturbed by obsessive fans earlier, BTS Jungkook also complained about sasaeng delivering food to his home address. As a response, K-pop fandoms are on red alert against sasaengs once again.

READ MORE: BTS Jungkook Sends Stern Warning For Sasaengs to Stop Doing THIS

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Written by Eunice Dawson.