The neighborhood known as Tengai-ya exists behind a fog of strange and spooky rumors, but when his flaky father agrees to become its property manager, high schooler Ryohei will uncover more than a few secrets! After breathing new life into its coldest, dustiest corners, this teenager will shed a little light upon its dark cloak of mysteries and the strange new friends he meets beyond the gates of Tengai-ya. (Source: ADV)

Tengai Retrogical had one volume published in English by ADV Manga on November 30, 2004 before the license was dropped and the publisher went defunct.