Avenger-class Servant in [[Fate/Grand Order]]. Debuted in the GUDAGUDA Close Call 2021 event. Their real name is Mori Ranmaru, the younger brother of [[Mori Nagayoshi (fate)|]] who served as [[Oda Nobunaga (fate)|]]'s retainer.

In Fate, their gender is listed as unknown, similar to characters like [[Enkidu_(fate)|Enkidu]] and [[chevalier_d'eon_(fate)|Chevalier d'Eon]]. However, unlike Enkidu and Chevalier d'Eon, who are truly gender-neutral within the game, [[mysterious_ranmaru_x_(fate)|Mysterious Ranmaru X]] is referred to as a female.

[b]Character Design[/b]: [[Mika Pikazo]] 
[b]Voice Actress[/b]: [[Saitou Machiko]] (齊藤 真知子)

h4. See also

* [[List of Fate series characters]]

h4. External links

* "Fate/Grand Order Wiki: Mysterious Ranmaru X":[https://fategrandorder.fandom.com/wiki/Mysterious_Ranmaru_X]
謎の蘭丸X 森蘭丸 謎の蘭丸X(Fate)