Minamoto-no-RaikouWP (源 頼光WP, Minamoto no Raikō?), Class Name Berserker (バーサーカー, Bāsākā?), is a Berserker-class Servant summoned by Ritsuka Fujimaru in the Grand Orders of Fate/Grand Order. She is also summoned by Leila Raidou in the Moon Holy Grail War of Fate/EXTRA CCC Fox Tail.
She is the Master of Nursery Rhyme in the Imperial Holy Grail War of the Heian-kyō Singularity.
An elegant, virtuous and glamorous woman in the prime of her youth. While a cool-headed military woman, Raikou is also a beautiful woman overflowing with tolerance. Surely the personification of maternal love.[1][2]
She has very long hair, which she ties at the very end.
She appears to wear some kind of a latex bodysuit, with a piece of cloth draped over her chest, with a heart-shaped insignia, linked to her collar. A similar piece of cloth is found over her crotch, tied by a rope around her waist. Raikou possesses some armor in the form of tight gauntlets and grieves, elbow and knee-length respectively. Her Katana is seen sheathed, connected to her by another sort of rope.
In her second Ascension, the collar and cloth over her chest are removed, revealing her breasts and the knot-work of the rope-like strings tied around her body. A quiver holding a set of arrows appears joined by her right hip, and her left hand now holds a tall bow.
In her third Ascension, she obtains samurai armor in the form of long shoulder pads, and now possesses head ornaments on each side, which resemble unfolded fans. Her right hand now holds her katana.
Kijyo Koyo says that Raikou resembles her grandfather, Minamoto no Tsunemoto.