Plot: Y/N Bladeelder or by the name that he was more known for The Demonic Defender he was born as just a normal peasant Man who had his faithful dog named Koro y/n inspired to become a soldier to help protect his home so y/n went through harsh training to become a soldier his dog Koro trained as well to become a fierce beast in the field the two get their mission to protect a Royal but things didn't go well in which Koro was badly hurt and y/n begged a mage to save Koro the Mage did but turned Koro into a deadly weapon y/n and his faithful dog Koro and become immortalized in mythology but y/n is recorded into the throne of heroes and Koro as one of his Noble Phantasm's now let's read about y/n and koro's new life as Hero spirit & Noble Phantasm

Name: Y/N Bladeelder
Hair color: Black
Eye color: Red
Gender: Male
Race: human. Heroic Spirit.
Age: 25(Died)
Appearance:

Tags:
1. Fate/Zero
2. Fate/Stay night
3. Fate/grand order
4. Male Reader
5. Koro
6. Harem
7. Epic battles
8. Demon god pillars
9. Machines gods
10. Heroic spirits
11. Cosmos's in the lost belts
12. Romance
13. Love
14. Blood and gore
15. Fluff and smut