One day, his classmate Akito Takagi, the school's top student and aspiring writer, notices the detailed drawings in Moritaka's notebook.Seeing the vast potential of his artistic talent, Akito approaches Moritaka, proposing that they become mangaka together.In reality, he opts for the two-dimensional world of gaming over real life because he is an unhealthily obsessed otaku of galge games (a type of Japanese video game centered on interactions with attractive girls).
Their peace is merely ephemeral, however, as suppressed emotions, born from vows both newfound and forgotten, start exerting their influence on the twins' new lives.
And deep down, a dark secret, only known to them, begins to unshackle.
Keima discovers that the only way to capture these spirits is to conquer what he hates the most: the unpredictable hearts of three-dimensional girls!
Shackled to Elsie via a deadly collar, Keima now has his title of "God of Conquest" put to the ultimate test as he is forced to navigate through the hearts of a multitude of real-life girls.
Nymph conjures up a device that enables people, but not angeloids, to enter other people's dreams.