Berserker (バーサーカー, Bāsākā?) is the Berserker-class Servant of Major Matou in the Imperial Capital Holy Grail Strange Story of Fate/KOHA-ACE. He is also able to be summoned by Ritsuka Fujimaru in the Grand Orders of Fate/Grand Order.
Berserker's True Name is Mori Nagayoshi (森長可?), nicknamed Demon Musashi (鬼武蔵, Oni Musashi?). He was summoned instead of Major Matou's intended Heroic Spirit, Miyamoto Musashi. A warrior from the Warring States Period, the son of Mori Yoshinari from the Oda clan, and the elder brother of the famous Mori Naritoshi (Ranmaru) who served as Nobunaga's attendant. A brave warrior who's earned the nickname "Oni Musashi" for his many military exploits and the spearmanship that was taught to him by his father who was famed as "Sanza the Attacker”.
As a person with an extremely volatile temperament, he had furiously cut down a checkpoint guard, after being asked to dismount and state his family name, saying “What are you trying to do making this Katsuzou (Mori Nagayoshi) dismount; how could there be such ignorance in the presence of Lord Nobunaga?”, forcing his way past the checkpoint and threatening to set fire to the town if anyone tried to stop him. When he reached a bridge immediately after that, he was asked to dismount, and furiously cut down (et cetera) and there were no shortages of such anecdotes. By the way, the person who gave the order to dismount and state the family name is none other than Lord Nobunaga himself. But he was somehow forgiven.
Nobunaga: — — — "There’s no helping it, since it’s Onimusashi”
Galloping through the world in the Sengoku Era as the epitome of insolence, Nagayoshi was nonetheless killed at a young age when hit by a bullet during the Battle of Komaki and Nagakute. At that time, it was said that both friend and foe rejoiced, yet such a tale's veracity is questionable.
Berserker is a large man, towering over every other character in the story. Appearing in a technologically advanced suit of tan and red armor provided by the military, it has several distinct features, most notably several thick cables hanging from the upper back and a large, bucket-like helmet that completely encases his head, six horizontal slits aligned in two vertical columns serving as his means of seeing out. Beneath the armor, he wears a suit of deep green.
After losing his helmet, it is revealed that he is a fairly young looking man with spiky crimson hair swept backwards, his fringe normally hanging in front of one of his eyes.
Mori Nagayoshi was known for having a very violent temper and ruthless behavior in combat, leading to his nickname. Decapitating 27 by himself in his first battle, he painted the lower half of his armour pure red with the spilt blood of his fallen foes in the Battle of Takato during the Kōshū Conquest, to the point where his allies mistakenly thought he suffered severe wounds, boasting exceptional valor while demonstrating excessive brutality. To put it more clearly, it would be dangerous to even look or talk to him, and he’s the sort of person with whom one should avoid eye contact, even if you met him on the streets.
On the other hand, he is outstanding in his flawless management of his territory. There is also an erudite side to him, in his appreciation of tea and calligraphy. What the heck is wrong with you.
In any case, while Nagayoshi’s life is filled with nonsensical anecdotes of gratuitous violence, he has never leveled his spear at his liege even once in his entire life. Even now, when he is summoned as a Servant, he is single-mindedly loyal towards his recognized Master, in the same vein as his lieges, and there is absolutely no need for concern regarding betrayal.
However, whether that very sense of loyalty would take form in accordance with the Master’s wishes, remains to be seen….
After being summoned Berserker is initially restrained in a lab in Demon Archer's compound. He eventually is released and begins to rampage through the compound, cutting off Shinji's arm to remove the threat of Command Spells in the process and then carrying him while slaughtering guards.
Encountering Lancer and his master, the two battle, Lancer gaining the upper hand after splitting Berserker's helmet and piercing his head, seemingly killing him. However, his armour revives him, and activating his Noble Phantasm, he catches Lancer off guard. However, before their fight can reach a conclusion, Berserker is struck from behind by Sakura Saber.
Fighting both Lancer and Saber together, Saber confronts Berserker with her Lightless, Three-Stage Thrust, piercing clear through Berserker's heart. Unable to recover, Berserker fades away.
Destroy All Nobunagas: GUDAGUDA Final Honnōji 2019Edit
Berserker's Noble Phantasm is his large spear, Boneless Man, that he boasts can cut through any armor. He was given armor by the army that is capable of absorbing magical energy from the land, allowing him to act without need of worrying of draining his Master. It also provides regenerative properties, allowing him to revive from even fatal injuries unless he is destroyed all at once by something on the level of an Anti-Army Noble Phantasm. The armor will eventually kill the land with enough use, but the purpose of Berserker was to be an annihilation weapon to be dropped into enemy territory. He would also possess the Noble Phantasm One Hundred Steps, his favored horse, in the Lancer or Rider classes.
While possessing an affinity with the Lancer and Rider classes as well as the Berserker class, he is invariably affected by Madness Enhancement, regardless of the class he is summoned in, curiously enough.