Sétanta

Sétanta, also known as Setanta, is a Servant in the game Fate/Grand Order (FGO), written as セタンタ in Japanese. He is the younger version of the Celtic mythological hero Cú Chulainn, summoned as a Saber-class Servant. Sétanta is not directly derived from mythology but is an original character in FGO. He's based on Cú Chulainn's training days in the Land of Shadows, depicting his youthful exuberance and endless potential. Despite his youthful appearance, he possesses immense strength and combat prowess comparable to the adult Cú Chulainn. He has a lively and energetic personality. Sétanta wields a Noble Phantasm called Cruaidín Sétanta, a sword of light with power reminiscent of his future self. He is a popular character in FGO, admired for his unique character design and adorable appearance. His companion, the puppy "Culann II," is also quite beloved. In FGO, Sétanta encounters the protagonist and becomes a reliable ally, gradually growing as a character and striving to become the strongest hero. He first appeared in Fate/Grand Order Arcade and later was added to the mobile game Fate/Grand Order. In the story setting, Sétanta also has connections to the fairy realm, even appearing as the sage Grímr, adding to his mystique.