Toaru Natsuyasumi no Chitsunai Hounyou Renshuu Nisshi - Boku no Daisuki na Seo-san o Shoubenki toshite Shiyou Shita 28-nichikan | A Certain Summer Vacation: A Diary of Vaginal Urination Training—28 Days of Using My Beloved Seo-san as a Urinal

Toaru Natsuyasumi no Chitsunai Hounyou Renshuu Nisshi - Boku no Daisuki na Seo-san o Shoubenki toshite Shiyou Shita 28-nichikan | A Certain Summer Vacation: A Diary of Vaginal Urination Training—28 Days of Using My Beloved Seo-san as a Urinal cover

[ひやしまくら] とある夏休みの膣内放尿練習日誌――僕の大好きな瀬尾さんを小便器として使用した28日間 [英訳]