It turns out Jun-young’s been messing up with Hee-soo and that he’s been talking behind her back. Hee-soo becomes the center of the school’s gossip, and when she’s about to have a panic attack, Si-ho appears in front of her, just like how she did when Si-ho was struggling back in high school.

준영의 사건 이후, 노트를 없애버리기로 결심하는 희수. 하지만 시호를 짝사랑하던 세진이 질투심에 희수의 비밀을 캐기 위해 그녀에게 접근하고, 노트를 훔치는데 성공한다.