Lolipara Second Strike! ~Ayumi no Seitai Kansatsu Daisakusen~

In Lolipara Second Strike! ~Ayumi's Ecological Observation Operation~, four kids once used their big brother's room as a secret playground. Now, Ayumi has taken charge, setting her sights on her school juniors, Maina and Takuya. She offers them a room filled with erotic toys for their own secret playground, leading to provocative adventures.