Hell is Dark with No Flowers Vol. 3 by Yoru Michio

Saori Toribeno, a writer from an occult magazine reaches out to Shiroshi but sending him an interesting journal and a request to interview Seiji. Saori has apparently stumbled upon a woman by the name of Mayuka Asaka who appears to have with a shard of The Mirror of Illumination in her eye as well and she had sent her to story to Saori's magazine, however, when Saori attempted to do an interview she was completely dismissed and decided to reach out to Shiroshi, where she also relates a strange tale of the murder of Mayuka's own father. Shiroshi immediately books a trip to the Asaka family's Inn, hoping to get to the bottom of both Mayuka's father's murder and to find out more about Mayuka's shard. Unfortunately for Shiroshi and Seiji there is a far greater conspiracy here and it may cost Shiroshi his life. 

Since its only volume 3 I feel like saying best one yet, is a little premature, but I don't care because it is the best one yet! The first story honestly seems a bit boring, but thats because its laying the groundwork for the second story and a conspiracy of, well Hellish proportions! Not to mention that the entirety of the yokai's story in vol. 2 is absolutely off the wall. I'm not going to go into it because I dont want to spoil it but as far as Im concerned the second story solidifies Michio's place among all of the great Japanese mystery writers.

I also love how close Seiji and Shiroshi are now, regardless of how old Shiroshi actually is he truly is just a lonely little boy at his core and Im so glad he found Seiji. And Seiji needed someone just as much as Shiroshi did so to see them interact as almost brothers by volume three is wonderful. 

I can't wait to read volume 4! With that cliffhanger ending everything is up in the air especially since a character has emerged from hell that is actually evil!