![](https://cdn.animecharacters.io/images/anime/large/16489-86c9c908.jpg)
Format
ONA
Episodes
1
Episode Duration
5 min
Status
Finished Airing
Premiered
Aired
2020-01-17 to ?
Source
Original
Rating
PG-13 - Teens 13 or older
Genres
Mythology
Fantasy
Music
Psychological
Studios
Echoes
Producers
Licensors
Pianoman (PIANOMAN)
The still, white space expands as far as the eye can see. A man who's lost his memory awakens. An enormous door stands before him, and there's an old temple in the distance. The building seems to be calling to him, and the man approaches it. There's an old piano there. The moment he touches it, horrifying memories return to him. Who is this man, really? And what is the truth of this space...? (Source: YouTube)