"Oh Satan, Lord of Demons, hear our prayer! Awaken the truths that lie swallowed in this sleeping one! Grant us your majestic power! Breathe life into death, if only for a moment's breath!"
Ax Crazy: It would be easier to generate a list of characters who don't qualify.
Back from the Dead: Reiko herself notably fulfills this trope at the end of the first book.
Honestly all of the zombies qualify.
Beauty Is Never Tarnished: Averted hard. Women routinely get scarred, dismembered and slaughtered, not to mention inevitably displaying rotting flesh when their corpses are brought back to life.
Played straight with Reiko and her sister, Rurika. Despite them getting beheaded and taking a bullet to the skull, respectively.
Body Horror: Almost all of the zombies. Later on in the series they take this Up to Eleven with bullets that turn one in ten people into shape-shifting monstrosities.
Black Dude Dies First: Averted. Jasmine Mendosa is the only major black character in the series, and one of the only ones to survive for more than a few volumes.
Break the Cutie: Mayo Tohdoh in volume two. When we meet her she's in a wheelchair, but still a cheerful, upbeat child. Then she witnesses her brother Yuki turn traitor and kill their friend Rudoh on the promise that one of Rurika's henchmen can fix Mayo's legs. And then Rurika goes back on the deal and has Yuki killed. When Reiko finds her Mayo is a full blown Stepford Smiler and cheerfully tells Reiko what happened.
Cain and Abel: Among the Himezono twins, Reiko is the good one (sort of) purely using her necromancer powers for business, while Riruka is the pure evil one that would much rather conquer the world with hers.
Came Back Wrong: Most of the early stories deal with Reiko summoning up murder victims and the unjustly killed, who inevitably come back Ax Crazy. Later on the zombies tend to be under a Zombie Shop's control and act like summoned monsters, some of which seem to retain their old personalities. This is averted personality-wise with Reiko herself, despite certain... physical issues.
Crapsack World: With all the immoral and morally ambiguous people, the world is bad enough without zombies being summoned and allowed to run amok.
Laser-Guided Karma: A staple in the first volume. There's always a chance that if someone has committed some crime or atrocity, and Reiko is in their vicinity, that person will inevitably be torn apart by psychotic zombies.
Losing Your Head: The protagonist had to get a new body in the second volume.
Mama Bear: The woman in the very first story hired Reiko to resurrect her daughter to find out why she committed suicide. When the daughter reveals she killed herself because her father sexually abused her (and then tears him in half), the woman pays Reiko a bonus to resurrect her husband's severed head so she can exact some more Laser-Guided Karma on him.
Our Zombies Are Different: Reiko summons zombies by casting a spell that raises everything in earshot. The raised zombies usually retain their intelligence, and have heightened strength and speed. They are also completely nuts unless Reiko keeps them under control.