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However, the tournament turns out to be a hoax crafted by Zack, and Kasumi, along with the other DOA girls are stuck for two weeks on the tropical island, playing beach volleyball. Kasumi, hoping to see Hayate, goes to the island for the tournament. Kasumi was then invited to Zack Island, an imaginary place that has all the DOA girls for the fourth Dead or Alive tournament. Despite this, Kasumi still wished to see her brother Hayate and half-sister Ayane and entered the third tournament to meet with them one last time. Now labeled as a "traitor" in her village, Kasumi has been pursued incessantly by assassins from her clan and not a day passed without an attempt on her life. Kasumi managed to escape (defeating her clone in the process) and attempts to return to her village, but was not allowed to because a dishonored ninja could not rejoin their clan. However, she was then captured by Dead or Alive Tournament Executive Committee (DOATEC) who created a clone of her, called Kasumi X. Kasumi eventually killed Raidou and to avenged Hayate, winning the first tournament. However she is a trained shinobi who is capable of killing, though, as shown in the first DOA story, and she foregoes showing mercy to particularly dangerous adversaries or those who have wronged her or her family: Raidou ( first game), her clone ( second game) and Helena ( fourth game).
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Kasumi dislikes seeing people suffer from at the hands of her skills and often shows mercy even to enemies. In all of the tournaments except the first her goal is not to win or even to fight she simply wishes to meet Hayate. She values her family and seeks to return home in peace. Though she is a highly skilled kunoichi with deadly abilities but she does not enjoy fighting and often expresses a desire to avoid confrontation. Kasumi is portrayed throughout the DOA series as a more compassionate character than her younger half-sister Ayane and the other fighters. Leaving the secretive ninja clan made her a nukenin (runaway shinobi), obliged to live on the run from former comrades who are now seeking to hunt her down. She was to become the 18th Master of the Mugen Tenshin ninja clan, but ran away in order to enter the Dead or Alive tournament and defeat Raidou, who crippled her brother Hayate. According to the game canon, Kasumi ( her name translates to "Mist"), also known as "the Kunoichi of Destiny", is a teenage female shinobi skilled in the Mugen Tenshin style of ninjutsu.
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