25-year-old gamer Yamada was currently out of a job.
After an all-nighter at a net cafe he spotted a young girl and was smitten.
In a split-moment decision he kidnapped her and took her home. Her name was Yui.
Having successfully tied her up, Yamada felt a tingling arousal between his legs...

Yui shrieked for her beloved big brother to come save her when her hymen was split.
But as Yui had sex with his captive lover from morning to night, day after day,
she came to yearn for the pleasure, and her soul slipped into craven depravity...

[From DLsite English]