While Atem had been accompanying Ember and Kawi to Kira's room, he didn't actually make it all the way there. He passed by an open room with someone rather familiar in it... and had to stop to see if what he saw was true.
"Seto?! What are you doing here?" The pharaoh blurted out, entering a room where his familiar priest was in. There was a teenage girl on a bed, cradling a small baby, and Seto seemed pissed off. He was speaking the ancient language, because he knew that Seto knew it. "When did you get here?"
Seto was, obviously, not the priest. It was the modern-world CEO of Kaiba Corp., and he had no idea why Yugi suddenly burst into this room, babbling something. Seto had yet to believe in the Millennium Items, and since he hadn't seen his rival for maybe a good five years, the magical quality of everything that happened seemed to have vanished. "What the hell are you doing here, Yugi?" He asked in a bored tone, crossing his arms over his chest.
"I'm not Yugi, he's in Kira's room." Atem responded, switching to English when Seto used it. "When'd you learn English? And why are you here? Did you come in the storm as well?" Seto looked confused.
The teenage girl kept glancing towards the door, unnerved by Atem's sudden appearance. The baby had started to cry. "Mr. Kaiba, when is Mokuba going to get back...?" Much to Seto's dismay, Mokuba, now a teenager, hadn't been very wise with his girlfriend, who had ended up pregnant. Which was why he was there, seeing his new niece.
"I don't know." Seto snapped at her. He had never gotten around to liking his younger brother's girlfriend, and when he had found that she was pregnant, had quickly 'disowned' Mokuba. Still, curiosity had wanted him to come see the baby. He turned his attention back to Yugi. "Look, Yugi, I don't know what the hell you're talking about or how you found me here, but I suggest you just leave. You've got no business to be in this room. And if you'll excuse me, I've got to go find my brother." He began to stride out of the room.
Atem followed after him, continuing to ask him questions about how he got here and why he was acting like this and whatnot. The more time that passed the more frustrated the both of them got with each other, until Atem ended up grabbing Seto's arm and dragging him off to find someone who could back up his story. That meant he went into Rei's room.
Bakura had just been breathing a sigh of relief at the quiet, and was relaxing when the thing he never wanted to have happen happened. A pissed off looking pharaoh abruptly burst into the room, dragging a pissed off looking priest behind him. Bakura jumped to his feet, looking rather intimidating as he braced himself, standing between the two intruders and Rei, looking ready to snap either of their necks. Atem and Seto began talking at once.
"Would one of you kindly explain to Seto that--"
"I don't know what the hell you're doing, Yugi, or what the hell you want--"
"--he doesn't believe me that he's the priest, which makes no sense because he is--"
"--I don't want to hear any of your stupid ancient Egypt babble, Yugi, now let me go or else I'll--"
"--it's not how a priest is supposed to act and I know for a fact that Seto would never--"
"Let go of me, dammit!"