Tonight I was planning to work overtime to meet the deadline for the report to my boss, when suddenly a storm hit, heavy rain accompanied by thunder and lightning causing the electric trains to stop operating. I was considering staying here alone tonight when suddenly senpai Nanami rushed in with her body soaked in water. Her thin shirt became wet, revealing her bra and almost her entire body in front of me. I handed her a towel to dry off and found out she turned back to get her belongings. Suddenly, a thunderstorm erupted, Nanami-senpai hugged me tightly, she seemed very scared of the thunder so she wanted to hold me a little longer until this thunder passed. Looking at her seductive, wet body with the scent from her body, I couldn't help but touch her all over! As the water rose, I was about to make a move when she suddenly kissed me, turns out I was not a wolf but a little weak lamb in front of her! Nanami made me have sex all night until morning to serve her sexual needs, almost draining all my strength and energy...