Singer Sean took on the Seoul Subway Line 2 full loop challenge.

On the 19th, Sean posted a photo on his social media account along with the caption "I am starting to run one full loop of Line 2 now."

In the photo, Sean is shown about to start running from City Hall Station on Seoul Subway Line 2. The fact that Sean set out on the Line 2 loop on the 19th, when the temperature was minus 2 degrees, surprises people.

Seoul Subway Line 2, which has a loop structure, is divided into the inner loop and the outer loop, but it is known that the standard time to run the entire circular line is about 1 hour 27 minutes to 1 hour 30 minutes. The outer loop tends to take about 3 minutes longer.

Recently, many people have been making a full loop of Seoul Subway Line 2. The loop along Seoul Subway Line 2 is known to be about 55 km, and it is said to take between 80,000 and 100,000 steps on foot.

Sean has taken on various challenges while running on YouTube. Having undertaken challenges such as running all day to see how much he could earn delivering food, attention is on what record Sean will set in the Line 2 full loop challenge.

Meanwhile, Sean is married to actress Jung Hye-young and they have two sons and two daughters.

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