maester of Yevon. He inherited both positions after the death of his father, Lord Jyscal Guado. Seymour is half-Guado and half-human, as his father married a human woman in an attempt to foster friendship between the Guado and human races. He is briefly playable during Operation Mi'ihen, a part of the game in which the Crusaders and the Al Bhed join forces to stop Sin. While often formal, Seymour hides a twisted desire to save Spira by becoming Sin and destroying the world. This resulted from his father's treatment who had his wife and son exiled to the island of Baaj since Seymour was considered an abomination by the Guados. Afterwards, Seymour's mother gave her life in the Baaj Temple to become the fayth of the aeon Anima, believing that by sacrificing herself for Spira's temporary peace against Sin, her son will be accepted by Spira's people. At eighteen years of age, Seymour's exile was revoked and he soon killed Jyscal and took his position. He asks summoner Yuna to marry him, seemingly to further unite Spira, as they both have mixed parentage, being the offspring of a human and another race. When Yuna's guardians learn of Seymour's motives, they stand against him and kill him. Seymour's spirit is able to remain in the living world and become an unsent. Seymour later reveals his plans for Yuna – to have her turn him into the next Sin. His pyreflies are later absorbed by Sin. There, Seymour begins seeking a means to control the creature from within. During this process, he is confronted a final time by Yuna and her guardians, who manage to break their way inside the creature's body. However, he is defeated and is sent to the Farplane by Yuna. In Final Fantasy X-2, Seymour appears only in a flashback cutscene that shows him assisting Baralai to hide from the Yevon Order. In Final Fantasy X-2 International, Seymour can be fought in the Battle Simulator tournament and also be added as a member of the party. Yunalesca is a legendary summoner and the daughter of Yu Yevon from one millennium before the events of the games. She was the first person to defeat Sin, using the process known as "the Final Summoning", sacrificing herself and her husband, Lord Zaon. Although she died in the battle, Yunalesca remained as an unsent to instruct her successors in their pilgrimage to