A deep, cellular-level "promise" with a super deep tongue! Kozuki Sera's third MOODYZ exclusive is a French kissing sex act that involves tongue and tongue, saliva and saliva, and bodily fluids and bodily fluids! By taking in another person's bodily fluids into the body, genome editing occurs, resulting in a stimulating natural effect! This is the legitimate ecstatic sex between a man and a woman that has existed since ancient times! Yes! A promise! Genome-swapping sex covered in bodily fluids is the deepest, most dope promise between a man and a woman!