An Amateur Boys And Girls Observation! A Focus Group AV We Investigate The Bonds Between A Stepbrother And Sister!! Can This Stepbrother And Sister Stay True To Each Other Until The End When They Take On This Sexy Mission? If They Clear The Mission They Win Cash Money Prizes! First You Start With A Hug, Then The Pocky Game, Then A Kiss On The Cheek, Seeing Each Other Naked, Etc. With Each Stage, The Mission Becomes More And More Extreme...