Hey there, mister, I might just spill your little secret. Oto, a beautiful young girl, has fallen prey to the perverted middle-aged man who lives next door. Every time he calls her over, he teases her at his place. No matter how much she tries to resist, the oblivious Jiro-san just won't stop. He sniffs her underwear and makes embarrassing comments, keeps going even when she's being pleasured with toys, shoves his cock deep down her throat, forces her to swallow his smelly cum, and even ejaculates inside her pussy without her consent... But lately, Oto hasn't been finding these naughty pranks by her neighbor so unbearable anymore. For some reason, she's starting to enjoy them. I wonder why...?