The full title of this specific piece is typically Danchi no Ko to Himitsu Kichi de Karada Zenbu Koukishin (団地の子と秘密基地で身体ぜんぶ好奇心), which was released around . Key Details Artist : Yone Kinji (also known as Tone Ginji). Circle : The Dungeon In Yarn. Genre : Original adult doujinshi.
It seems to be a combination of misspelled or mashed-up terms: thedungeoninyarnyonekinjidanchinoko free