Production Companies: TBS , TOHO , dentsu , Twins Japan , CBC , Amazon Japan , OORONG-SHA , RKB Mainichi Broadcasting Corporation , AMUSE , WOWOW , GYAO , Hokkaido Broadcasting Co. , The Asahi Shimbun .
Overview: Neurosurgeon Koichi uses an experimental technique to enter the brain of his beloved Atsumi, who is in a coma after attempting suicide. In his quest, Koichi drifts steadily further into the sweltering marshes of the spirit. It is soon no longer clear what is real and what is not.
, TOHO 
, dentsu 
, Twins Japan , CBC 
, Amazon Japan , OORONG-SHA , RKB Mainichi Broadcasting Corporation 
, AMUSE 
, WOWOW 
, GYAO 
, Hokkaido Broadcasting Co. 
, The Asahi Shimbun 
.
