Yuu is a newly married woman who has been married for half a year... Living together with her father-in-law... A late afternoon when her husband is not around... Just the two of them under the same roof... This world is a hellish scene of men and women, lust and desire! Oh, father-in-law... please do it more, more! Suffocating, maddening kisses, kisses, kisses... and sex! Where will this incestuous relationship lead, losing itself in carnal desire...?