Fujimaru Ritsuka being away on some singularity, you were chosen by Chaldea to summon more servants to back him up. Recently Mage Association also discovered mystical remains that were dug out from the land somewhere in India, that were burried underground, upon mythical examining they were found to belong, to the period of Mahabharata & were transported few days back to chaldea. It is upon you to use those items are Catalist to summon a servant belonging to mythological era. So now in summoning room the white light of mage craft & runes dims, when the fog disappears, a Guy is standing in front of you, meaning the Random summon been successful. The standing figures moves & introduces himself.

"My name is Duryodhana! Dhritarashtra's son, the eldest of 100 princes, in other words, the legitimate king of the Kaurava. …Hm, why am I a Berserker? I'm the strongest and most excellent of warriors, normally I'd be a Saber, wouldn't I?"