I'm reposting this one last time (I hope). I only put in a new warning to make everyone happy.
Warning: Possible Marysue, OCness, confusion, possible no background, possible no setting, and bad grammer. There I said it and if you don't like it don't read, please. With that in mind, flame away, but you have been warned.
Prologue/ Beginning
Before Yugi was born his older twin sister was born. Her name was Yuri and right from the start she was very different then Yugi. When they were three Yuri was taller, a genius who was beyond college level, and showed extreme strength both mentally (such as taking bullying better) and physical.
Somehow she ended up working for Kaibacorp when she was only four. Head inventor and Noah's personal assistant, she stuck by Noah's side mostly. They became close friends and when someone tried to kidnap Noah when he was seven she took up kendo with him. Gozaburo treated her as if she was his own daughter. After Noah was hurt in the accident she had one more kendo lesson where her stomach was torn open and when she came back from the hospital Gozaburo began to treat her badly.
She meets Seto when she was in a lab for a few days and he snuck in to work on an idea of his. She saw Seto's good side and she became his friend even if he would never admit it. When Seto took over Kaibacorp he gave Yuri a new job or three. Now she was head inventor, Mokuba's second guardian and Vice president of Kaibacorp. Two years before duelist kingdom Seto went on a business trip to Egypt. He decided to bring a gift back to Mokuba and Yuri as well. A pair of gold earrings shaped like an eye. He got the earrings for Yuri and gave them to her when he got back. Yuri decided to wear them at all times as a symbol of Seto's heart opening.
Now, skipping over duelist kingdom (where a major part of this story happens) and battle city and heading straight to Yugi's and Marik's duel. Yuri had been helping out on fixing the engines. She had cut her left arm slightly on some metal spikes in the engine room. She was heading to the infirmary when a rare hunter stopped her when she turned a corner. She tried to hit him with her message bag she always cried her stuff in, but he dodged and made a grab for her. Yuri turned and ran the other way pulling out a GPS locator and tracking down Seto's duel disk. She paid no heed to the fact that he was at Yugi's duel and ran straight towards the duel tower and up the stairs. The rare hunter following her all the way....