I don't think it is one because it's not like Keima is being pursued by all of the girls he has helped. And, every time a new case begins it only a one girl type of interaction

Undercover one

[img]http://fc05.deviantart.net/fs14/f/2007/026/1/1/Into_Werewolf_by_AbyssWolf.gif[/img]

[img]http://img.photobucket.com/albums/v168/Tank_soldier222/Into_Werewolf_RETURNS_by_AbyssWolf.gif[/img]

At the start no, but now yeah.

I mean earlier on he was just kind of a serial dater. But he's accumulated a number of love-interests now that are sticking around with the two goddess girls and the devil girl

i took back what i said:

Quote from mu2020

i would say no... wow being the first person to say no

harem consider to be two or more girls fall in love with the main character at the same time. this one is not... it's just an ark of love after another one. and the fact is that the love that they have are carefully planed by keima.
and for these feeling they have after it. IMHO is just a feeling that come cuz their live has been touch by this person... those who touch soo many live will endup being alone yet having a very happy live

what comes at the end is a huge question though... i mean what happen if all of the girls memory are somehow return. would keima endup being chased by all the girls on that school (teacher included)...?

since 'the search for the goddesses' arc, this manga has turn into a harem..