High Pulse

Eun-jae struggles to adjust to high school as a quiet student with a history of heart issues. His goal is to live a normal life, but he faces bullying due to his perceived weakness. Despite these challenges, he frequently crosses paths with Jin-hyeon, a well-liked student. Their repeated encounters lead Eun-jae to recall meeting Jin-hyeon before, though Jin-hyeon does not remember him. As their interactions continue, Eun-jae begins to see that his heart, which has often been a source of worry, can also beat for more joyful reasons.