Fate/stay night, Shikabane Hime: Aka Recommendations
In Fate/Stay Night, powerful familiars called Servants fight alongside their contracted Masters to have their wishes fulfilled by the Holy Grail. The Masters provide mana to the Servants so they can exist in the world. In Shikabane Hime, powerful undead corpses called Shikabane Himes fight alongside their Contracted Priests to have their wish of going to heaven fulfilled. The Contracted Priests provide "Run" energy to the Shikabane Himes so they can exist in human form.
If that weren't enough, Emiya Shirou of Fate/Stay Night and Oori Kagam of Shikabane Himei are both recklessly brave protagonists, risking their lives again and again to protect the people they