[DeepL Translation - needs review] Introduction to Volume 1: A bookstore clerk, Sankaku, has always had the ability to see spooky things. Although Reikawa is a skilled psychic, he lacks emotional and life skills, so Triangle is often called upon to serve tea and "read the air". Then, he encounters a murder case... This is a psychic entertainment of the uneven duo!
(Translator: DeepL)
This volume is basically all plot development surrounding Erika's cult involvement and Hiyakawa's past. There is quite a bit of divergence from the plot I saw in the movie at this point. Good deal of dialogue from Hanzawa. Despite watching a ton of crime shows I still feel like I understand only half of what male detectives say and they slur their words together even in writing. Oh well. Good practice, I guess.