Description

The protagonist stumbles upon a smartphone capable of altering common sense itself. With this app in hand, he rewrites his little sister’s sense of what’s normal, opening the door to a summer of erotic pranks and sexual encounters in this daily-life simulation. The game centers on summer vacation days spent together with your downer-type little sister. Each day offers wholesome communication—conversations, skinship, and other everyday interactions—that builds the rhythm of your time together. Layering new common sense alterations on top of that foundation unlocks a widening range of erotic choices, letting the app reshape each day into something far more debauched. Use the power of the common sense alteration app to spend an uninhibited summer vacation with your little sister.