Only a galaxy brain can appreciate what this author has made. In this whole manga, the main plot is the MC gets blue balls constantly from the woman, always on edge. Slowly, their relationship deepens, and the edge gets harder as the MC keeps getting blue balls over and over and over again.
And finally, in the ending,... NO ONE GETS TOGETHER, MC and the Main Girl just move on with their lives.
The author, with his final pen stroke, edges YOU, the READER, completing the whole cycle.
Only a true genius can write a plot that breaks out of the 4th wall and affects the reader directly. One of the greatest edges of all time, a meta-edge