My name is Ebihara Hinano.
It’s been a month since I lost contact with my big bro Hiroshi.
Saying this gives me the creeps, but he’s studying cockroach DNA for medical purposes.
There has been no contact so far with him after the last call told me that his studies have proven something by using his own body as a test subject.
But I am feeling someone’s presence in his room…..
Hinano steps into his room with an spare key she borrowed from the apartment’s superintendent. What she finds in the room is…….
Besides the sought-after quality sex scenes, there are a side plot of having sex with monsters in “spoony” mode.