From Chibi Manga:
A pure hearted x extremely obscene perverse eros! The manga editor Narita Rin, hates her overly self-confident ikemen senior Takigawa Satoshi!! One day, she calls him into the deserted reference room and asks him to help her with some document filming on the project she is working on. It's a sensual scene between two ex-lovers that the two are acting out and filming. An exciting, heart squeezing eros story where the two's twisted desires interweave with each other!