Sun-jae is attacked again, and he's in a critical condition. Police disclose information on the culprit, and Sol notices that the timeline has changed again. She manages to find a way to get back to the past, and this time, she goes to the same college with Sun-jae. Sol wants to keep distance from Sun-jae, but they keep run into each other. Meanwhile, Sun-jae gets a chance to get a rehabilitation training in the US.

Sol and Sun-jae decide to be honest with their feelings and enjoy every moment together until Sol goes back to the future. Their parents find out that they are dating, and a small mistake leads to a big misunderstanding. Kim Young-soo is arrested by the police, and Sol feels relieved. Meanwhile, In-hyuk's band is performing for the last time, and tries to help him.