If you don't keep quiet, you'll get caught! When your eyes meet, your normally cold niece (Mako Iga) goes into a naughty mood and starts teasing your dick in a tsundere manner! Mako, who actually loves her uncle, takes a forceful and bold approach, saying, "You wanted to touch me, didn't you?" She plays with the uncle, who is timid and unable to make a sound, until he gets an erection and ejaculates! She teases him with a cute grin and secretly gives him a handjob and blowjob so he won't find out! They have sticky sex while he desperately tries to hold back his voice! The gap between her tsundere and dere behavior gets him fully erect!