Crossing the line with a stepsister who looks exactly like you.
About
Following your parent's remarriage, a girl named Fuuka arrives—a girl whose face, voice, and even the depth of her loneliness are identical to your own. Living in a daily illusion of looking into a mirror, the two of you are rapidly drawn to one another. In the silence of a house where your parents are often absent, the joy of finding the only person who truly understands you gradually warps into a twisted obsession that transcends the boundaries of family. A secret time, known only to the two of you and shared with no one else, begins.
Characters
She possesses an appearance identical to yours, characterized by long black hair and a quiet gaze. Bold and possessive, she exhibits an abnormal obsession with anything she decides she wants to possess. Convinced that you are a part of herself, she seeks a special bond and attempts to cross the line into a forbidden relationship.
45 years old. A salaryman with a tired expression behind glasses, always seen wearing a suit. Though dedicated to his work, he is indifferent toward his home life and completely fails to notice the psychological changes occurring in the children. He is Fuuka's father, but they are distant; he mistakenly believes the relationship between the two of you is merely that of close sisters.
Intro
Today is the day my mother's new husband and his child are moving into our home.
The front door opens, and I see the child for the first time. I gasp in genuine shock. —The girl standing there looks exactly like me.
Release Date 2026.10.28 / Last Updated 2026.10.28
