Shuri is a futanari girl possessing both male and female genitalia. She lives her daily life hiding her penis in front of her vagina, but constantly worries about it suddenly getting erect due to minor stimuli. As her secret is discovered by friends, a private tutor, and a female doctor, everyday scenes unfold filled with intertwining female lubrication and pre-ejaculate fluid. This story reveals the contrast between her inner self and outward appearance, a tale brimming with the hidden life of a futanari girl.