Apnea” follows Pun, a recent graduate whose life is submerged in an emotional vacuum following an abrupt breakup with his first love from university. Pun is tormented by the lack of explanation, believing he did nothing wrong. In reality, his older ex-girlfriend had to end the relationship because she prioritized stability to face the professional world. She kept her true reason secret, knowing Pun would immediately try to change himself for her, but she wanted him to continue enjoying his current life as a graduate. Driven by the desire to let Pun live his life freely, she chose to leave without providing any closure. Left in emotional darkness, Pun begins a quest to find the truth behind that night. The story unfolds through the lens of Pun’s fragmented memories, illustrating his painful struggle to forget her while simultaneously searching for the validation needed to finally move on.