Ryuko landed calmly in front of her home, smiling as she took in the new but already well-loved walls. Her warmth was only mildly disturbed by Rias face-planting behind her, having not expected the sudden shift from roof hopping to descending and thus hadn't been prepared for landing as Ryuko had. Ryuko found that she could take the physical discomfort of her new 'Devil Master' with great equanimity. She'd just have to adjust to the insanity that was Ryuko's daily life and preferred state of being. She treated the revelation of Devils, Fallen Angels, and magic like it was world shaking.

For Ryuko and her family, it was Tuesday morning before breakfast, and they still had the rest of the day to get through. Not that she was going to warn Rias of that. She wanted to watch how she handled this.

Rias groaned as she got to her feet. "You could have warned me..." she grumbled as she tried to brush herself off.

"Why should I start now?" Ryuko countered dryly. "Come on, then." She strode to the door, jerking Rias along behind her.

"W-wait!" Rias gasped out worriedly. "At least let me prepare myself-"

"You had the whole trip here," Ryuko countered as she kicked the door in, the hinges and knob having been designed specifically to handle her preferred method of entry without damage. The slam as it impacted the sound-amplifying cushion against the wall was, as always, quite satisfying. "I'm home!" she called out as she stalked in. "I brought a new headache!"

Rias frowned. "You could have at least said 'guest'," she pointed out sourly.

"I did," Ryuko countered as the rest of the family approached.

Rias managed to set herself just as Satsuki arrived, and the look of worry on her face increased. "...Satsuki-san..." she greeted worriedly.

"Rias-san," Satsuki stated flatly, "care to explain the drastic fluctuations of my sister's vital signs over the past half hour?"

"Wait, you have me monitored?!" Ryuko snapped out angrily.

"All Goku Uniform-type clothing automatically sends back vital sign information," Shiro pointed out as he entered. "It's a standard safety measure to ensure they're functioning properly-"

"Ryuko-chan~!" Mako screamed out as she rushed into the room. "I was so worried-" Rather than cannoning into Ryuko as she normally did, she screeched to a halt as she caught sight of Rias, and the fact Ryuko had hold of the older student by the wrist. "Ryuko-chan..." she whimpered softly as she tugged at her pajama top, "I know I'm not very developed yet, but I didn't think you'd replace me over that..." She glanced down at her ample - though small when compared to Ryuko or Rias - chest.

Ryuko stared flat-eyed at Mako. "Mako-chan...think about it. Does that really sound like something I'd do, even at your wildest fancy?"

Mako tapped her chin. "No, Ryuko's not like that. But you were out all night-" A spotlight shone down on her from nowhere as she was suddenly dressed in a ninja style bodysuit for some reason. "-your vitals went wonky-" The suit burst open as she rocked back in a rather suggestive pose. "-and then you come back holding hands with a busty babe-" She ducked out of the spotlight and instantly came back in wearing a red wig, two croissants stuffed under a skimpy tube top to make her breasts look bigger, a slit mini-skirt, fishnet stockings, and red high heels. "-so what am I supposed to think?"

Rias squawked indignantly at what was obviously an unflattering representation of herself. Ryuko struggled not to laugh. "You know, if you lose the wig and the buns, that's a look we could have fun with," she teased, making Mako blush brightly.

The spotlight vanished and Mako was back in her pajamas. "But if that's not why...did you bring her as a sacrifice so Dad and Brother would leave us alone for a night?" she inquired curiously. At that point, both Mataro and Mr. Mankanshoku got eager looks on their faces.

"Tempting, but no," Ryuko teased playfully, greatly enjoying Rias' growing discomfort. "I'll let Rias explain things. That should be fun to watch."

Rias swallowed nervously as all attention turned to her. Closing her eyes, she took a breath and let it out. "Alright...here goes..." Opening her eyes, she looked Satsuki right in the eye, already seeing that she was the one in charge here in this family, in a way her equal here. "Earlier tonight, Ryuko engaged in battle with a Fallen Angel and lost-"

"I find that hard to believe," Satsuki interrupted flatly.

"The part about the Fallen Angel?" Rias asked, having expected that and ready to demonstrate her Devil nature to prove what she was saying.

"No, the part where Ryuko lost to some scrub picking a fight with her," Satsuki corrected, turning her attention to her sister.

Ryuko shrugged. "I got careless. I was enjoying a fight for the first time in a while and was keeping myself to her level to see how far she could go. How was I supposed to know magic was poison to Life Fibers?" She shot Shiro a glower.

"To be fair, I didn't know that either," Shiro pointed out. "Until just recently, I believed magic to be the stuff of myth."

"Supernatural fibers that feed on neural energy and mind control people is accepted fact, but magic is hard to believe?" Ryuko snapped irritably as she flicked her hand, a few threads slipping out to flicker before returning into her flesh. Satsuki raised an eyebrow at that demonstration, but said nothing.

"The former is extraterrestrial," Shiro pointed out flatly. "Speaking of which, the color of yours is off. Why is that?"

"I was...getting to that," Rias spoke up, hoping to get to something resembling what she knew as sanity soon...or getting past her own explanation so she could hear theirs. As all attention turned to her, she continued. "The Fallen Angels light spears impaled Ryuko several times, and her body's attempts to metabolize the energy to heal herself led to her being immobilized and locked in agony due to the incompatible energies. Her blood on a summoning circle I'd arranged to place in her possession caused myself and a companion to be summoned to resolve the situation..." She spread her wings. "Since we were suited to do so. In order to allow Ryuko's body to handle magical energy so she could recover...she has been reincarnated as my Devil Servant." She braced herself, ready for all sorts of possible reactions to that.

"So Ryuko's a Devil now, and you're supposed to be her Master?" Satsuki asked flatly, nobody else seeming to have any reaction to what Rias had said as anything abnormal. She then turned back to Ryuko. "That's what you get for sandbagging and getting careless."

"Oh up yours, sis!" Ryuko snapped back. "Like you never made that mistake!"

"Only when fighting you," Satsuki countered with a smirk.

"Get stuffed!"

"If Nonon would leave Uzu alone for five minutes, I'd consider it."

As Nonon, Uzu, and Ira all performed an epic spittake before choking on their tea, Ryuko stared at Satsuki completely flummoxed. "...seriously?"

"Maybe, maybe not," Satsuki allowed. "But it caught you off guard, didn't it?" A smirk crossed her face.

"You seem to be taking this change...rather well," Rias observed nervously.

Satsuki shrugged. "If you were to come in next week and tell me God was dead and Ryuko had been selected to take his place, my only comment would be to not have me listed as her sister in the new scripture."

"What?" Ryuko demanded angrily. "You'd be ashamed to be my sister if I became God?"

"No, I want to be remembered as Kiryuin Satsuki, not Ryuko Matoi's big sister."

Ryuko smirked. "Heh, we'll just have to see who gets remembered as who's sis, huh?"

"Ueh?!" Mako suddenly gasped out. "Master?"

Rias blinked in confusion at that. "Umm...that is the normal terminology..." she began awkwardly.

A spotlight suddenly shone down on Mako again as she took a tragic pose. "How was I to know that my strong-" She was suddenly wearing a muscle suit. "-fierce-" She was suddenly wearing a lion costume. "-independent-" She was suddenly dressed as the Statue of Liberty. "-Ryuko-chan was actually a submissive-" She was suddenly dressed in the 'Leia Slave' outfit from Star Wars. "-desiring a dominant Mistress?" She was suddenly dressed as a queen. "But I will not lose her without a fight!" She was suddenly dressed as a knight, with sword bared. "I shall take lessons from Gamagoori-san-" She was suddenly dressed as a dominatrix with whip in hand. "-to become the proper dominant Mistress my Ryuko-chan desires!" She struck out with the whip a few times...badly.

"Not that kind of Master!" Rias screamed out, blushing brightly as everyone else burst into laughter.