Shota is the son of a woman who runs a popular yoga studio, which has recently become a hotspot for many office ladies and housewives. Among them, the most eye-catching is Sana, a stunningly slender beauty with a gorgeous big ass. Passionate about yoga, she showcases her charms to the fullest in every daily session. Developing a crush on Sana, Shota takes advantage of his position to pull increasingly bold pranks on her. He peeks at her sheer-clad, translucent ass during practice, and under the guise of yoga lessons, freely gropes and touches her body without restraint, acting as if he's completely immersed in the yoga world. He even forces her to change into an OL outfit, and casually joins her in the bath, blurring the lines between instructor and student. The sight of the S-rank beauty Sana losing control and moaning helplessly under Shota's relentless teasing makes for an absolutely thrilling and unforgettable episode.