The light novel series from Nigoju and Umibozu began in 2019 and has four volumes out so far.
Check out the 30-second spot below to see how closely the anime adaptation follows the design aesthetic that the light novel series started.
Adapting the light novel series, the manga has two volumes out and the third volume is set to land on July 21st, 2021.
The Monthly Comic Alive magazine previously revealed a new anime adaptation in the works with Tantei wa Mō, Shindeiru, aka The Detective Is Already Dead.