The story of a little sister who loves being confined in tight spaces. After a previous experience of being locked inside a suitcase and stored away by her older brother, her obsession with tight spaces has only deepened. This time, when the brother visits her room, he finds a suitcase sitting there as usual. Seeing the situation, he says, "Since my sister loves tight spaces, I might as well lock her in as long as she likes," and locks the suitcase, leaving it abandoned in a corner of the room. After about an hour, there's no unusual sound or movement coming from inside—only silence. Gradually, the brother begins to worry. "Could she really be okay after being locked up for a full hour with no air holes?" Unable to bear the anxiety any longer, he finally opens the suitcase. Immediately, a thick, sensual feminine scent wafts out, revealing his sister inside, breathing heavily. ※Footage inside the suitcase is shown in fast-forward.