A female college student lives on the upper floor of an apartment building.She is a so-called otaku girl who dresses modestly.I wasn't really interested in it, but the manga made me go back and forth between each other's rooms.It's a miracle that such an old man became friends with a girl much older than him, but the surprise didn't end there!The true identity of the sober virgin is that she is curious about male genitals and masturbates, and on top of that, she has huge breasts like a manga!The days when they devour each other's bodies like crazy.