THIS IS THE THIRD THAT NEEDS TO BE READ
(Just wanting to make sure I've covered everything.) All this is technically meant to be taking place during the time period of the original Yugioh. Sareika is in the story during duelist kingdom, battle city, Noah's world, etc.; everything but not saying she's meant to be in every 'episode'. Sometimes she's on the sidelines as Seto's voice of reason, showing up here and there. Because she's basically been the only female figure in his life for so long, she'll act like a mother figure and calm Seto down. She keeps him in check at times and in some moments in my story she tells Seto to stop picking on Yugi and his friends. But sometimes her persona changes as well, one minute she can be sweet and genuine and other times she'll be as bossy and conceited as Seto. I play it off like she's picked up some traits from her father and Seto but she tries not to let them break through. She'll be snarky and sarcastic, like a mean popular girl, saying things to Seto like 'are you ever going to stop playing with your little monsters'. But most of the time she's calm and collected, kind of like Ishizu but she's not always in Seto's face trying to convince him of his "past" and "destiny", Sareika tells him to be open minded but she's not always babbling about it. At the end of the Kaiba Corp Tower episodes, before the island explodes Sareika tells Seto that she's going back to Madrid. So when the Dartz episodes start up she's not around, at least not until like the endish-episodes. When they're in Dartz temple and both Seto and Yugi are dueling Dartz she's there for that.
When the grand championship arises she's there for the duels and when Zigfried shows up, he's entranced to meet the one and only Sareika Kaiba. Zigfried knows her fashion line well and gives her a red rose as a token of affection. When the competition is over Sareika is furious at Zigfried for nearly ruining her brother's competition but later in my story, one year after "present day Yugioh" the two get married. Sareika moves into the Von Schroeder's castle and when Sareika is 21 (another year later so now it's 2 years past "present day Yugioh" in the show) she gives birth to their son Sebastian (they call him Seb for short). Once again in my story Seto is still in love with Sareika but even as she's about to get married he doesn't tell her how he feels. He watches the wedding in disgust and takes his anger out on Sareika, saying that he still hates Zigfried for nearly ruining his championship but Sareika reminds Seto that she's never been as happy as she's been with Zigfried, so Seto unwillingly lets Sareika be happy with another man. And when Sareika gives birth to Seb she about dies on the operating table becomes giving birth causes strain on her heart. But then 12 years later, Sareika is 33 and Seb is 12, Zigfried dies in a limo accident. Sareika is now widowed and living with Seto and Mokuba in Domino City; Seb resides with them as well. Leon has taken over the Von Schroeder Company; he works for months at a time while Sareika is living in Domino City and when he has free time Sareika will fly out with her son to visit Noah. Occasionally everyone will be gathered at her home in Madrid.