Astounded by Eun-gyeol’s candid love confession for Se-gyeong, I-chan retaliates with a spirited punch. Eun-gyeol’s attempts at self-defense lead to I-chan having a bleeding nose on both sides. The schoolyard transforms into a battleground as students try to intervene, and the entire situation gains momentum. Eun-yu is left in shock by the unexpected confession. Meanwhile, Eun-gyeol uncovers a hidden secret about Chung-a.