Cosmic Girls's Eunseo became the target practice master among her fellow celebrity soldiers in training on the January 4 broadcast of 'Real Men 300'!

Despite being the first female celebrity to complete the 3 km long-distance race at 16 mins and 54 secs, Cosmic Girls's Eunseo still failed to pass the army's physical examination requirements, as females in their 20's must run the distance in under 15 mins.

However, once at the target range, Eunseo showed extreme concentration and focus as she and Berry Good's Johyun went head to head next to each other. While both Eunseo and Johyun shot down the first 11 of their targets side by side, Johyun made critical mistakes with her last two shots. Eunseo, on the other hand, maintained her flow and finished with 13/13 shots made!

Afterward, Eunseo shed tears of joy and revealed, "I was so happy to see the results of my rigorous efforts, and I cried tears of joy." Congratulations, Eunseo! Check out additional clips from this week's 'Real Men 300' below.