Yuna-chan's body is sensitive everywhere, including her small breasts, and it seems like her whole body is an erogenous zone!? Yuna-chan reacts so much that it makes you think. A man's hands, full of sexual desire, crawl all over the body of a teenage girl who has not yet fully matured. She sadly munches on the erect and curved thing, and as it penetrates her, she soon becomes immersed in uncontrollable pleasure.