Kodai Sakai

Hibiki Kazaguruma, a sixth grader, meets an amusing little robot named Bureikin while coming home from school one day. Bureikin, a dancer from an alternate-dimension dance world, challenged the dance king for the throne and lost. He has been deprived of Dance Stones (the stones of dance power) and sent to the human world. To restore his power, Bureikin must collect all the Dance Stones scattered around Earth. (myanimelist)

A group of 30 individuals go on a bus tour to Nanaki Village in order to leave behind their normal lives but arrive to find that the village is hiding many secrets.

In a grandiose mansion, a young cheerful living doll begins to serve her shadow mistress, only to find out through their bonding that things are not what they appear to be. (imdb)

Who is the real you? The Tasokare Hotel exists in a state of twilight limbo, allowing souls caught between the afterlife and the world of the living to rest. Neko Tsukahara arrives with no memory of who she is or how she came to be there, and is shown to a room filled with items relating to her past. (primevideo.com)