Asa and Kame strike up an immediate friendship when they arrive at the same time for their first day of duty at the Ooku, the splendid pleasure palace housing the harem of Lord Tenshi. The two young women are there to join the many hundreds of other maidservants—men are barred from entering, with immediate beheading the price of trespassing. It soon becomes clear that behind the luxurious lifestyle and ritualized routines of the Ooku lie sinister schemes and cynical rivalries. Meanwhile, a mysterious wandering potion-peddler known only as the Medicine Seller subtly insinuates himself into the Ooku, just as an uncanny, otherworldly menace begins to reveal itself. (Source: Fantasia Festival)

Second season of Kusuriya no Hitorigoto.

In Tenikai General Hospital's general diagnostic department, patients who are deemed difficult to treat by other doctors are collected here. Furthermore, there are murders and mysteries of unknown causes that even the police can't handle. Genius doctor Takao Ameku reveals the shocking truth hidden behind these mysterious "disease." (Source: Official Site, translated)

Tasokare Hotel is a hotel that is engulfed in twilight all day long, with no distinction between day and night. It exists as a place between life and death, where souls unable to decide whether to move on to the afterlife or return to the present world can rest their wings. The protagonist, Neko Tsukahara, wanders into Tasokare Hotel without remembering who she is or why she's there. Guided by the hotel staff, she is led to her room. "There should be items related to the customer's memories in the room. These might serve as clues to help the customer regain their memories." While searching for a way to return to the present world and remembering who she is, she encounters a certain incident... (Source: Official YouTube, edited)