​Emi, a high-school girl, is deeply infatuated with her step-brother. Determined to confess her love on her eighteenth birthday, their plans take an unexpected turn when debt collectors seize everything her father owned, causing her step-brother Tomomi to vanish. Faced with the loss of her true love, Emi embarks on a mission to locate him. Along the way, she discovers her alter ego, Amy, who embodies her hidden desires and fantasies. Emi, typically reserved and demure, must navigate her newfound persona as she strives to reconcile her passionate yearning with the search for her missing step-brother. Join Emi as she embarks on a journey of self-discovery and exploration in this enticing and wildly erotic tale.​