So... is Denpa Onna to Seishun Otoko finished or not?
NO, it is not finished.
Why?
The anime finished before the manga:
Anime finished: February 08, 2012
Manga finished: July 30, 2013
MangaUpdates contains information about the anime adaptation and indicates that it is incomplete.
Watching Order (by release date)
Here you have all the anime relations we detected ordered by release date, so you can see the reason for this status in context and also use it as watching order.
The mangas and the non-core contents are excluded by default, but you can enable them by clicking the buttons below:
Denpa Onna to Seishun Otoko
Ground Control to Psychoelectric Girl
Anime - Base
Release date: April 15, 2011
Denpa Onna to Seishun Otoko: Mayonaka no Taiyou
Ground Control to Psychoelectric Girl Special
Anime - Sequel
Release date: February 08, 2012
Synopsis
Makoto Niwa, obsessed with quantifying his youthful experiences as either positive or negative, moves in with his aunt for a fresh start when his parents leave. He's hoping for a normal high school life, but that plan is quickly disrupted upon meeting his strange cousin, Erio Touwa.
Erio, who claims to be an alien and stays wrapped in a futon, turns Makoto's expectations upside down. His pursuit of a regular life is further complicated by the appearance of other quirky girls in town.
Makoto must navigate this unexpected and eccentric environment, facing the possibility that his youthful endeavors might not be so positive after all. He's about to discover that an unconventional adolescence can be surprisingly exciting.