Grandpa lover "Nana-chan" visits her uncle's house while his wife is away! As soon as she hears that her aunt won't be home, Nana-chan switches into full seduction mode! This super cute young girl teases her uncle so much that he can't resist giving in to her advances, crossing the line and taking things further than ever before... But even after all that, Nana-chan isn't satisfied! She starts seducing her cousin Masashi too? He looks like a sweet innocent girl but turns out to be too hot to handle... It's just too much!