So... is Tasogare Otome x Amnesia finished or not?
NO, it is not finished.
Why?
The anime finished before the manga:
Anime finished: November 28, 2012
Manga finished: September 21, 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:
Tasogare Otome x Amnesia
Dusk Maiden of Amnesia
Anime - Base
Release date: April 09, 2012
Tasogare Otome x Amnesia: Taima Otome
Dusk Maiden of Amnesia: Ghost Girl
Anime - Sequel
Release date: November 28, 2012
Synopsis
Tasogare Otome x Amnesia centers around Yuuko, a ghost haunting Seikyou Private Academy, a school steeped in occult lore and rumors.
Yuuko, suffering from amnesia regarding her death, forms the Paranormal Investigations Club to uncover the truth behind her spectral existence and the school's mysteries.
Her life changes when Teiichi Niiya, a freshman capable of seeing her, enters the scene. He becomes determined to help her recover her memories.
Together, along with Kirie Kanoe, who has a connection to Yuuko, and Momoe Okonogi, they investigate the infamous Seven Mysteries of the school, seeking answers about Yuuko's past and the secrets hidden within Seikyou Academy.