On March 31, Busters uploaded a highway rest stop mukbang to their YouTube channel, and one thing has caught netizens’ attention: the age of the newest member.

The Busters line-up has changed several times since debut, but the group currently has 6 members. The eldest is Jisoo, who is just 16 years old (international age).

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On March 16 this year, Busters introduced their newest and youngest member: Minji. And when Minji appeared in the group’s recent mukbang, netizens were struck by just how young she seems.

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The particular scene that caught everyone’s attention is one where Jisoo is seen feeding Minji like an adult would feed a child.

So, how old is Minji? Her exact birthday hasn’t been revealed, but she was born in 2006. That means she’s currently between 13 and 14 years old (international age).

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According to netizens, her small face, large eyes, and mochi cheeks are what give her youth away. Though Minji’s age makes her a middle school student, many have said she looks more like an elementary schooler.

Before joining Busters, Minji was a child actress. She became part of the group after winning a children’s dance competition, though her official position in Busters is Vocalist.

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Minji’s older sister, Jieun, is also in the group looking after her dongsaeng. Of course, Jieun is only 15 herself.

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Debuting at such a young age is rare, but Minji certainly isn’t the first. NCT’s Jisung, SHINee’s Taemin, f(x)’s Krystal, and IZ*ONE’s Wonyoung were all 14 when they debuted.

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In JYP Entertainment’s Chinese hip-hop group Boy Story, the oldest member (Hanyu) debuted at 14, and the youngest (Shuyang) was just 11.

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However, netizens have noted that while idols have debuted around Minji’s age before, they generally had a much more mature appearance. According to them, Minji’s baby face is what really makes her seem too young for the job.

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You can watch the mukbang here to judge for youself: