Yun Sung Bin dishes on his experience and struggles during Quest 4 in "Physical: 100."

The Netflix survival game gathered the best of the best as Olympians, national athletes, special force members, fitness enthusiasts, and more compete for the top prize.

Winners of the "Physical: 100" will get a staggering 300 million KRW (245,000 USD). However, he or she must endure a series of grueling challenges.

One of the participants and also among the fan-favorites of the show is the Olympic skeleton racer a.k.a "Iron Man" Yun Sung Bin.

Interestingly, as the show heads to its finale, male participants sat down as they react to episodes 7 and 8.

Yun Sung Bin Reacts to his Head-to-Head Round With Jung Hae Min

Viewers are looking forward to seeing who among Yun Sung Bin and Jung Hae Min will win the challenge and will take home the cash prize.

As for "Physical:100" episode 9, it will air on February 21, exclusively on Netflix.

READ MORE: THIS 'Physical: 100' Cast Won First in All Challenges

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Written by Geca Wills