Jae Hee(Sulli) won the marathon after an astonishing fight. 

On the Thursday episode of SBS "To the Beautiful You," Jae Hee musters up the last bit of strength she has as she thinks about what Tae Jun(Minho) said to her earlier in the episode.

Tae Jun mistakenly believes that it was Jae Hee who leaked the secret about his suffering from YIPS syndrome and he confronts her to say, "Did you just hover around me so you could just sell me and my life out to the reporters?" and proceeds to treat her even more coldly than before.

In order to prove her innocence, she replaces Tae Jun in the school marathon and she puts in all her energy so she can win. The other team, bent on winning, does not hesitate to cheat and they even trip struggling Jae Hee.

With the finish line left in front of her, she sprains her ankle but she thinks of Tae Jun, who always seems happiest when he high jumps. She then remembers his quote, "If there is a miracle, it's just another name for effort," and gets back up to run, winning the race in the end.

She goes back to Tae Jun and says, "I won. I thought about what you said the whole time. It wasn't me who talked to the press, please believe me." Touched by her performance, he decides to let it go and believe her innocence.

Photo Credit: SBS