[Synopsis] Kotoha (20 years old) feels uncomfortable when her boyfriend touches her nipples during sex. Fearing that he might not feel sexually satisfied if this continues, she boldly decides to book a session with a "Nipple Development Salon" she finds online. "All-female staff!" "Even beginners are welcome!" Seeing these advertisements, Kotoha nervously goes to the salon. Reassured by the gentle therapist, Kotoha's nipples gradually become more and more sensitive... * All pages depict nipple play only; No penetrative sex is depicted. * Though she is brought to orgasm by a person other than her boyfriend, it is only for the purpose of therapy, so there is no NTR plot development. * Main acts depicted in the story: Stimulated through clothing, in front of a mirror, nipple masturbation, lotion massage and lotion gauze, bondage, in front of others, toys, teasing, tongue, aphrodisiac, and more! 60 main pages pixiv: https://www.pixiv.net/users/351442 X: https://x.com/pphmKo98 (English product description provided by "ZenTranslates".)