The characterization and the plot was very well developed.
I also very much enjoyed the abundant fan service, in which girls would constantly end up naked one way or the other!
Very humorous, enjoyable, and best of all: a lot of cute, sexy girls!!
I definitely recommend this for all the ecchi and fantasy fans out there.
Plot: A normal perverted highschool guy is killed by his first boobalicious girlfriend, who happens to be a "fallen angel". He is then reborn as a devil by another sexy red-haired girl, who trains him along with the rest of her team of devils. The guy develops his powers while enjoying the company of many sexy devils around him.