Episodes (4)
The Lie That Changed Everything
Driven by a protective instinct that spirals into obsession, a brother begins secretly touching his sister, Yui, while she sleeps. After Yui lies about receiving a love confession to test his feelings, the brother's jealousy leads him to drug her and initiate a sexual encounter. Unbeknownst to him, Yui welcomes the act, and though she eventually reveals her lie, their sibling bond is irrevocably transformed by their shared secret.
The Sleeping Lie
Believing Yui has forgotten their first encounter, the brother begins secretly visiting her room every night after she starts taking sleep medication. While he believes he is taking advantage of her unconsciousness, Yui is actually awake and using the medication as a lure to invite his lust. As their twisted cycle of pleasure and deception continues, the brother begins to suspect that Yui has been aware of everything all along.
Awake Together
Yui confesses that she has been feigning sleep and using pills to encourage Akira's advances, fearing he would only want her if she were unconscious. After an honest conversation and a passionate encounter, the two siblings decide to abandon the deception and embrace their mutual desire. They establish a secret arrangement to act as normal siblings by day while spending their nights together in intimacy.
Secret Maturity
Yui begins to fear that growing up will distance her from her brother, and when he pulls away to focus on exams and the logistics of contraception, her longing leads her to initiate a risky, unprotected encounter. After the encounter, the siblings confront the reality of pregnancy and the necessity of protection, ultimately agreeing to navigate the dangers of their secret relationship together as Yui matures.
