[Ichino Miruku] Saimin Apuri de ani o Okasu Otouto no Hanashi 2 [Kinsei Translations]

A scheming little brother tests a hypnosis app's new 'common sense overwriting' update on the older brother he's obsessed with, rewriting his sibling's reality so thoroughly that taking a relentless pounding feels like just another healthy workout between students. With big brother reprogrammed into a doting, obedient pet, the domination escalates—dressing him in a schoolgirl uniform with panties barely containing his cock, praising him for studying, and finally using that total control to confess, ordering him to dump his girlfriend and become his instead. What follows is a gleeful power-reversal fantasy of crossdressed submission, ahegao-faced prostate milking, and an older brother who happily rides and swallows everything his little 'girlfriend' demands.