[Hanainu] Onii-chan no Jikken | My Brother's Experiment (Shoujo Kumikyoku 35) {Kamimed} [Decensored]

A shy girl with twintails returns home to her brother's house, only to be drawn into a secretive experiment that pushes the boundaries of sibling intimacy. Under the guise of a harmless test, the brother forces the girl into compromising positions, exposing her body while she protests, creating a tense atmosphere of reluctant obedience. The stark black‑and‑white panels capture the escalating power play, with the brother’s dominant stance and the girl’s vulnerable posture underscoring the illicit dynamic.