If the phrase "maknae (youngest member) on top" sounds familiar, have you ever thought about what it means when the opposite is true?

When fans and the public find out that some K-stars are the oldest members, they are often shocked.

Here are five K-stars who, even though they are the oldest, still have the young energy of a maknae.

BTS Jin

This man seems to be getting older instead of younger, but Jin is the oldest person in the group. People often think he is one of the younger ones.

Not just because he looks like a baby, but also because he likes to joke around.

JYJ Jaejoong

If someone told you that Jaejoong is actually 36 years old, would you believe them? People often think he is younger than he is because he looks young and is calm and kind.

g.o.d Park Joon Hyung

Park Joon Hyung is a first-generation star and the group's oldest member, but you wouldn't know it from the way he acts around other people. He is calm and easygoing.

TWICE Nayeon

Often times people make the mistake of thinking the leader of the group is the oldest, and while that was the case with many groups in the past, as of recently, that isn't, and you can tell even within the group TWICE.

Many mistake TWICE Jihyo to be the oldest member, but did you know it's actually Nayeon?

(G)-IDLE Miyeon

This is another group where the head should be the oldest, but Miyeon is actually the oldest.

People probably thought she was one of the younger ones because she was always making jokes and acting wild.

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Jo Jung Suk is officially back—and fans of Hospital Playlist couldn’t be more excited.

In the preview for episode 10 of Resident Playbook, aired by tvN on May 10, Jo Jung Suk’s character Lee Ik Jun is shown walking through a dimly lit hospital, saying, “It’s been so long since I came here.”

The short scene sparked immediate buzz online, especially when he’s seen holding hands with a woman—whose face is hidden. Many viewers are now asking: Is it Chae Song Hwa?

Although her identity isn’t revealed, fans are hopeful that the woman is Jeon Mi Do, who played Chae Song Hwa in Hospital Playlist.

Earlier announcements confirmed that both Jo Jung Suk and Jeon Mi Do would make appearances in Resident Playbook, fueling speculation that the beloved duo is finally reuniting on screen.

The teaser quickly became a hot topic, helping the drama maintain its upward momentum. Resident Playbook—a spin-off of the hit series Hospital Playlist—has been gaining strong viewership, with its latest episode setting new personal ratings records.

The show has consistently ranked No. 1 in its time slot across all channels, showing that fans are deeply invested in the lives and growth of the young doctors at the center of the story.

As the series continues to mix heartwarming guest appearances with its own emotional stories, viewers are now eagerly waiting for episode 10, airing May 11 at 9:20 PM KST, to see what’s next.

Will the “99s” finally reunite? Tune in to find out!

Source: [1]