A petite girl with an estimated AA cup was discovered on a crowded train! She was approached from behind and her sensitive small breasts were slyly massaged! Her nipples were attacked with a vibrator! She was tied up and humiliated! The more she resisted, the more sensitive she became, her nipples became erect, and she urinated! Her reason was broken as she became addicted to nipple orgasms! *This work contains the same content as part of NHDTC-086 "Nipple Development Train: Sensitive and Pissing Small-Breasted Girl Ver. 2," scheduled for release in July 2025.