Here are some of my personal favorites that are similar to Blood Lad. Remember that the order of the items on my list is arbitrary. Take pleasure in the suggestions that have been provided!
1. Soul Eater
A weapon meister technical school in Shinigami is the setting for this anime. Every group has a weapon master and a human weapon, and the show revolves around these three groups. Making it into a “Death Scythe,” the weapon’s ultimate title, requires them to collect the souls of 100 evil people and 1 witch. This weapon can only be used by Shinigami.
Maka and Soul Eater are central to Soul Eater, as are Black Star and Tsubaki, and Death the Kid is centered around Patty and Liz Thompson in addition to other minor characters. In addition to gathering souls, these Shibusen students are defending Death City from some of the most terrifying monsters while they are still in school and working to improve themselves.
During a time of crisis, you may find a strange red-scrawled phone number if you look hard enough. A young man who answers the phone and introduces himself as the Yato God can be reached at this number.
As a minor god who calls himself the “Delivery God,” Yato aspires to have millions of devotees. However, his ambitions will remain unfulfilled as long as there is no shrine built in his honor. When his weapon partner grows tired of his useless master and decides to leave him, he spends his days doing odd jobs for five yen each.
The god’s fortune changes when a middle school girl, Hiyori Iki, supposedly saves Yato from an accident and takes the hit for him just as things seem to be looking grim for him. Despite the fact that she survives, the incident has left her soul free to leave her body. But when Yato tells Hiyori he needs a new partner in order to restore her to normal, Hiyori reluctantly agrees to assist him in finding one. Yato’s fortunes may be changing for the better thanks to Hiyori’s assistance. [MAL Rewrite wrote the original draft]
3. Hataraku Maou-sama!
When Hero Emilia defeats Devil King Sadao, he is forced to drift to the other world, which is present-day Tokyo. The Devil King must work as a freeter to pay for his living expenses because his only skills are “conquering the world,” which he no longer needs.
4. Ao no Exorcist
As with Assiah and Gehenna, their worlds, humans and demons are two sides of the same coin. Possession, like in ghost stories, is the only way to cross realms. While in Gehenna, Satan, ruler of Gehenna, is still without a suitable host to possess. In a last-ditch effort to defeat Assiah, he sends his son instead, hoping that the boy will develop into a vessel that the demon king can use.
No Exorcist follows an ordinary teenager named Rin Okumura, who is troubled until one day, when demons ambush him. After learning that he is actually Satan’s son, his entire world is turned upside down when he decides to return to help his demon father defeat Assiah. Because he does not want to serve Gehenna’s king, Rin begins training to become an exorcist so that he and his brother Yukio can defend Assiah. [MAL Rewrite wrote the original draft]
5. Strike the Blood
The world’s most powerful vampire, the Fourth Progenitor, should be a thing of legend. This phantom vampire appeared in Japan, accompanied by twelve Kenjuu and spreading havoc. The government and the Lion King decided to send a Sword Shaman attack mage to observe and obliterate this Fourth Primogenitor. However, for some reason, Himeragi Yukina, an apprentice Sword Shaman girl, was selected for the observation. In Itogami City’s Demon District, Yukina arrived with the world’s most powerful anti-primogenitor spirit spear. Was Akatsuki Kojou, the Fourth Primogenitor, really who he claimed to be? (Edited from the work of Baka-Tsuki)
Furuya doesn’t care about the living; he’s preoccupied with zombies! He decides to try and resurrect his deceased cat when Furuya’s dies. When he gets there, he discovers a girl who was in a car accident and has now turned into a zombie! With his favorite thing right in front of him, what will Furuya do? FUNimation is the original source for this information.)
Tatsumi Oga, the “strongest juvenile delinquent,” is a first-year student at Ishiyama High, a school for criminals. He sees a man floating down a river one night while he’s sleeping nearby. The man splits in half when Tatsumi gets him to shore, revealing a baby boy. As the demon king’s son, Tatsumi will be the one to raise the boy with Hilda, the baby’s demon maid. The plot revolves around his interactions with the child while they are both attending a reform school. (Adapted from Wikipedia)