You can't help it: the mere scent of your beloved older sister drives you wild. In a frenzy of lust you even creep into her room to go through her underwear, seeking release... You're almost there-- "Hey, Hirosuke--! What are you doing there?" Now you're kneeling before her, wondering if death is better than this humiliation. (But this is hentai...) But when you mumble your confession to her, how she's the only one you feel this for, her reaction is not what you expected...