Masaru is taught by his older childhood friend Miharu as a private tutor.She had liked her for a long time, so she didn't really put herself into her studies.Her mother goes shopping, her study time ends, and when Miharu returns home, it suddenly starts to rain. Miharu got soaked in her garden when she got a call from her mother saying, "I can't go home because of the heavy rain."The see-through bra, the rain-soaked thighs, I couldn't stand it, and I hit her feelings.