Subaru Wachi, who is naive, pretty and fair-skinned, finally appears in the popular S1 series "Mixed Body Fluids, Dense Sex". Successive popular actresses challenge passionate sex drowning in pleasure. She is still shy, showing her first side by turning her eyes and covering her face until she takes off her pants, but when sex begins, she suddenly changes. The violent piston makes a loud voice and cums, and the whitening skin flushes. A masterpiece in which a naive girl, Subaru Wachi, drowns in sex!