WANZ-939 A daily life where my growing niece treats me like a pet and becomes a slut. - Yui Nagase

My niece, Yui, has been fond of me since she was little. - She seems to like naughty things, and as I listen to her and have fun with her, she starts to completely despise me and says, ``You're my servant.'' 3 months later, 3 more times. - Months later, each time we meet regularly, her appearance grows more mature, and she is given hand jobs, rap restraints, imitated porn videos, shows off sex... A story of 10 years in which she is treated as a slut by her growing niece.