Description: 'Huh? You want to have sex?' 'You've been looking at me with those eyes?' While getting aroused by my little sister who always wanders around the house in an unguarded state, the words slipped out. 'Gross... I really can't.' That night I sneak into her room and cannot endure with just the daily sleeping paizuri, finally having free raw sex with my little sister's manhole. Of course the next day as well sexual desire cannot be held back. 'We can't do this kind of thing as family...' 'But... don't stop...' 'Idiot... you came too much... today is really the end...!' '...From tomorrow no one will be home.' 'Onii-chan, what do you want to do with me...?'