Shin Sakura was a shy and introverted girl who struggled with social relationships, eventually becoming a reclusive, school-avoidant teenager. One day, persuaded by her teacher, she returned to school for the first time in a while. During a conversation, a past trauma resurfaced in a flash, triggering a panic attack that caused her to vomit uncontrollably. Seeing her in this state, the teacher could no longer suppress his arousal, passionately kissing her vomit-covered mouth while deliberately making her vomit more. He then intensified his assault with deep-throating fingers, eager to witness her violently spew even greater amounts of vomit. Overwhelmed by the intense stimulation, Sakura drooled, cried, and snot streamed down her face, yet she began responding to the teacher's "instruction." Declaring, "What you lack is confidence!" he continued his aggressive training, gradually awakening her to the pleasure of deep-throat stimulation. Witnessing this, the gym teacher and class representative joined in, surrounding Sakura in a throat-training session. In a stunning scene, a strapon dildo mounted on a mirror allowed Sakura to watch herself perform self-irrumation, triggering another powerful vomit climax. The relentless deep-throat sessions escalated into a 4-person irrumation, pushing Sakura's body to its limits—yet she found herself sinking deeper into the overwhelming pleasure.