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START-420 21 Days of Stakeout Investigation in the Height of Summer with a Bossy Female Supervisor: Even After Two Weeks, the Suspect Still Hadn’t Moved, and We Lost Our Patience, Spending the Last Three Days Sweating Through Our Work… Koi Nagisa
Two weeks after the stakeout began, Nagisa, my domineering female boss, and I took turns keeping watch. Since there was no electricity, we couldn’t use the air conditioner, and the two of us were left alone in a bare, sealed room, drenched in sweat and unable to shower. As Nagisa slept, I was drawn to her warm, sweat-dampened body and the faint, alluring scent in the air…
AvMates Insight
START-420 is one of 26 videos featuring Nagisa Koiu (渚恋生).
Her most frequent collaborator is the maker SOD Create, which produced about 88% of her total works.
For a full list of Nagisa Koiu’s works, see the Nagisa Koiu JAV playlist .






















Video Information
Release Date:2025-09-30
Product Code:START-420
Series:
