Apink‘s Jung Eunji recently shared a photo of a cute lunch box she made for her little brother ahead of his college entrance exam.

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The photo shows a container filled with small fried tofu rice balls along with the caption, “High school senior’s lunch box.

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As sweet as this is, many fans are not surprised by the gesture because of how close they’re known to be as siblings.

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In a past show, Eunji confessed that she financially supports her little brother’s education.

I make enough to support my little brother. He’s a senior in high school, and I pay for all of his education expenses.

– Eunji

They’re so close that her little brother even appeared on Apink’s variety show.

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Fans who saw this responded with admiration through comments such as “Wow, I’m so jealous“, “While my sister…“, and “Having Eunji as a sister must really power him up“.