Ghost Slayers Ayashi

In the fourteenth year of Tenpo, the city of Edo comes under attack by otherworldly creatures known as Yoi. Standing against them is the Bansha Aratemesho-publicly a research group for foreign texts, but secretly an organization dedicated to eradicating the Yoi. Its members, called Ayakashi, investigate strange occurrences across the land and hunt down the monsters when they emerge. The Ayakashi are an eccentric bunch: a man with no memory, a woman who dresses as a man, and others like them. Each possesses unique abilities to fight the Yoi.