An adventurous journey unfolds with Ogawa Nene, an H-cup extra large breasted girl, exploring her sexually inexperienced side. Over two days, she spends time in erotic swimsuits, buying eggplants and cucumbers, while engaging in blowjob and restraint play at a park. Exposed to amateur semen, her pure emotions gradually emerge. The story reveals one "first" after another—sudden surprise intrusions into her bathroom at dawn, her shocking first lesbian experience, and amateur group sex—all culminating in a bold exploration of her virgin territory.