HUNTA-178: 男子禁制、女子寮に男はボク1人！ 姉が住む女子寮はドスケベ女の巣窟！？ 全寮制女子校に通う姉の元に、届け物を渡しにやってきたボク。男が珍しいのか、覗きに来た姉の友人達が続々と集まってきた。男について知りたい！と興味津々な姉の同級生に囲まれ…

Men are forbidden, I'm the only man in the women's dormitory! The girls' dormitory where my sister lives is a den of lewd women! I came to my sister who attends a boarding school for girls to deliver something. Perhaps the man was rare, but my sister's friends who came to take a peek gathered one after another. I want to know about the man! Surrounded by my sister's classmates who are full of interest ...