Nande Koko ni Sensei Ga, or Why are you Here Sensei, is your typcial ecchi manga you can finish less than an hour. Like many other ecchi manga, Nande Koko ni Sensei Ga has classic ecchi scenes such as the male MC falling on the female character's breasts and pantie shots. So is it just another boring stereotypical ecchi manga? No, it is funny and casual manga.
Here is what I liked about this manga:
It was short and the story did not lag at all;
It had cliche ecchi scenes but it was executed in a funny way.
Since this manga is not a harem, the male MC
does not waste any chapters deciding on a girl.
It had nice art.
It had some nice "light" comedy.
Here is what I didn't like about this manga:
It was too short.
This manga is a manga any ecchi fan would enjoy; casual manga with great art and service shots. Short and enjoyable.