Nasuverse character




Also known as: Eternal Lady
Franchise: Fate
Appears in: Fate/Grand Order
Character type: Servant (Master: Protagonist)
Servant classes: FGO Rider
Gender: Female
Height: 154cm
Weight: 41kg
Place of Origin: Ireland

Rider (ライダー, Raidā?) is a Rider-class Servant able to be summoned by the Protagonist in the Grand Orders of Fate/Grand Order.



Rider's True Name is Medb (メイヴ, Meivu?), the queen of Connacht in the Ulster Cycle, part of a long line of queens ruling the country.[1] Properly married to Ailill mac Máta, she was known as a "young girl of affairs" who was known be involved in various engagements, marriages, and sometimes nothing but carnal relations with kings and warriors.[2] After Fergus mac Róich left Ulster due to the king having his two sons killed "out of lust for young women", he defected to Connacht out of hatred for the king. Becoming one of Medb's lovers, his influence in his desire to obtain revenge, Medb's own love of treasure, and the known curse upon Ulster causing all born there to become feeble when invaded caused Medb to start a great war, commanding the soldiers of Connacht while driving her chariot.[1][2]

Cú Chulainn, not born of Ulster, was the only one able to fight, so he spent his days slaughtering her soldiers until they proposed that the war be held with one on one duels. Due to that she was losing five thousand men per day, Medb reluctantly agreed to the terms, only advancing her army during the duels at the cost of only a single soldier per day. Medb ignored the treaty and still advanced, but only in unnoticeably small amounts due to having taken a public vow. Cú Chulainn fought through many hard battles against her, requiring even a group of untrained soldiers to sacrifice themselves to save him as he became more exhausted. Medb eventually schemed to have Cú Chulainn fight his close friend Ferdiad, reluctantly serving his lord even if it meant fighting his closest friend. The end of the battle resulted in Ferdiad's death and Connacht's defeat, followed by further defeat as the warriors of Ulster chased after Medb's retreating army. Cú Chulainn eventually captured her, but he treated her as royalty and returned her to Connacht without killing or shaming her.[1]

At some point during this period, Medb attempted to make Cú Chulainn her own, but he held no interest in her.[2] Waging war against Ulster for a second time with the motive of revenge against Cú Chulainn, she concluded that "Fergus' existence will become a bother", not inviting him to the battlefield, and he was later killed by her jealous husband.[3] She returned after gathering many warriors with grudges against Cú Chulainn, cornering through the use of various means. He was forced to fight her army by himself, and he died after being entrapped by various plots of Medb.[1] It is said that even those in modern Ireland sometimes report having having seen Medb. Not at all in jest, she still lives on in the hearts of people as the "eternal lady."[2]


Rider has possessed a "goddess-like, perfect body" since birth.[2]


“I don't hate being antagonized.
However, I cannot tolerate the fact that, among the men of Ulster, there is one man - and one alone - who did not become mine even though I thought 'I want him'. Even though I called out to him, tempted him. That attitude in which, let alone be swayed, simply said 'what the heck are you doing?'
I won't forgive him. Won't forgive, won't forgive, won't forgive, won't forgive, won't forgive! Absolutely, not him!
Cu Chulainn of Ulster!
By the name Medb, the lover and ruler of all men, I swear! I'll surely make you succumb to me!”


Rider can be described as both "pure and tidy" and "lewd and devious", neither being a falsehood. Many only glimpse the former in their impression of her, but she rather "just earnestly, tidily enjoys lewdness, and purely performs deviousness." She loves good men and really loves strong men, having made many men her own during life while not at all inhibiting her desires. Holding a great hatred for the only one who spurred her advances, Cu Chulainn, she sought out his death upon his rejection. Still possessing a fixation upon him even as a Servant, her wish for the Holy Grail is unrelated to him, instead being "to make all superb men of past, present, and future into my lovers." She seeks a brave warrior, generous, not envious, and knowing no fear. Should her Master be a brave man who measures up to her standards, she will likely "lavishly slap her love onto him with all her energies, without minding public attention", "sternly, relentlessly, just like the whip she holds."[2]

Rider is also fond of treasures, having waged war for that very reason.[2] Lancer describes her as a "warmongering lady" who hated having to back down.[1] As a Servant, Fergus holds a wish to intimately "get along together" with her and his own wife, a goddess.[3]


Fate/Grand OrderEdit

She is the main antagonist in Chapter Five.

Fate/hollow ataraxiaEdit

Medb is mentioned in Lancer's flashback.[1]


While Rider is known to be the mother of many soldiers, she did not truly give birth to them in the normal sense. Through taking the genetic information of warriors, she is able to reproduce them inside her body. Through a process where she wounds the tip of her index finger with a blade and lets the blood spill to the ground, one drop of her blood becomes a great puddle that "manufactures" soldiers within the blood foam, making her the queen and ruler of nameless soldiers.[2] Her Noble Phantasm is a chariot with two bulls, Chariot My Love. She also possesses the Noble Phantasms My Red Mead, Conchobar My Love, and Fergus My Love.


  1. 1.0 1.1 1.2 1.3 1.4 1.5 Fate/hollow ataraxia - The past is already
  2. 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 Fate/Grand Order profile
  3. 3.0 3.1