[Sanukiyan] When my niece has fallen asleep ... Time to meet in SEX education ch.1-6 [Full Color] [SquigglesJP]

A doting uncle turns 'sex education' into something far more predatory when he catches his sleeping niece alone, peeling back her sailor uniform under the guise of lessons she never asked for. What begins as groping under her shirt escalates into confusing intimacy—she calls him 'Oji-san' and whispers that she loves him even as she protests, blurring the line between coercion and something darker. When a second man enters the picture and the uncle's 'teachings' give way to a brutal assault in full view of the girl's torn resistance, the story spirals into a netorare nightmare where her body betrays her at every turn.