Kisuke is currently standing beside the flushed and fuming Sona. After successfully placating her and stopping her from destroying the place, Kisuke invited the guess in and did his best to serve the still angry and embarrassed Sona.

Beside her, sitting on the couch is her older sister and one of the current Devil Kings of the Underworld, Serafall Leviathan, formerly known as Serafall Sitri. Serafall is a beautiful girl looking in her late teens with black hair, tied into twin tails and blue eyes. Sitting beside her younger sister, her child-like body in more apparent, but you would never think of her as Sona's little sister because of her bosom which is much larger than Sona.

Serafall is the older sister of Sona Sitri and the oldest sibling of the Sitri Family. During the war between the Old Satan Faction and Anti Satan Faction, she was part of the Anti Satan Faction that opposed the Old Satan Faction, which ended in their victory, and she was eventually promoted to the position of Satan Leviathan, losing her right as the heir of the Sitri Clan in the process. Much like how Sirzechs of the Gremory Household became a Devil King.

Unlike her serious younger sister, Serafall is cheerful and possesses a childlike personality, but the situation right now is different as she couldn't get into her usual pace after seeing how these two act in front of her. If those people from the Underworld were to know that Serafall is just sitting silently beside her younger sister as she 'flirts' with some unknown guy, they would first doubt if it's really Serafall and after confirming it, they would still shake their heads at such ridiculous situation. That's the siscon that would even attack the Heavens if something were to happen to her little sister.

What's worse is that Serafall is currently dressed in her usual magical girl's clothing and the guy 'flirting' with Sona completely ignored her after the initial greeting. Serafall just ended up dumbfounded and also curious at the guy wearing green traditional Japanese clothing and a bucket hat that casts a shadow over his eyes. Mainly because this is her first time seeing her overly serious little sister, Sona, show such rich expression.

It's not that Kisuke wanted to ignore Serafall, it just that he didn't expect Sona would fell like that and is feeling a bit guilty. Earlier, his focus is entirely on the so-called Devil King even before they arrive. He didn't open immediately open the door because he wanted to gather some information first. He intended to understand the relationship between the two and since it's Kisuke, his only option is to tease Sona to get a reaction out of the Devil King. But he didn't expect that she would just stand there dumbfounded at the whole ordeal like she can't believe what's happening in front of her and wanted to escape reality.

Seeing that he isn't getting much reaction from her, he intended to stop joking around before Sona exploded... But he was too late. He didn't really think that she would kick down the door base on her personality and ended up falling down disgracefully after opening the door, 'Is this a change? Or just her true self? Girls are really hard to understand, especially the one hitting puberty.'

"Sona-kaichou, please forgive me, okay? I didn't intend for that happen too. Here some cookies, or do you like some cake instead?" Kisuke offered her a plate of cookies intended for when Ophis decided to hunt for some free food again.

Sona, still flushed and some tears pooling in the corner of her eyes quietly accepted the cookies and nibbled at it as if to take out her frustration on it.

"So? Would you not introduce me to this pretty lady beside you?" Kisuke, trying to brush away what just happened, pushed the conversation.

Sona flinched. She almost forgot that her elder sister is still with her. Now that she thinks about it, her sister is strangely quiet all this time and took a peek at her. Sona noticed that she's making a difficult expression which is quite refreshing to see considering how she normally acts around people, 'This is bad. I'm getting addicted to seeing people make that kind of expression. Kisuke's antics is rubbing too much on me.'

Shaking those thoughts, she introduced her sister, "This is one of the current Devil King, Serafall Leviathan-sama." Albeit a short introduction. She's still sulking from earlier events. Sona continues to help herself with some cookies to ease some of her worries and ignored the two, a decision she would regret yet again.

Seeing that Sona's mood won't improve for some time, Kisuke decided to leave her alone for now. He went over Serafall's position and stretched out his right hand and introduced herself, "The name's Kisuke Urahara. I'm very pleased to meet such a beautiful lady."

Serafall woke up from her stupor when Kisuke approached her and returned to her usual child-like behavior. She set aside Sona's issue for now and focuses her attention on the interesting human, "Oh my, thank you, Kisuke-chan. I'm Serafall Leviathan. You can call me Levia-tan~☆." With a wink, she shook Kisuke's hand.

This is the first time then looked at each other's eyes and suddenly there was a spark between them. They somehow understood each other. Sona looked at there direction when she suddenly noticed that they were strangely quiet. She saw that they were staring at each other's eyes without a word while holding hands. A flash of jealousy instantly took over her and wanted to separate them but before she could do it, Kisuke suddenly separated from and took out a photo, "As a sign of goodwill, please accept this." It was the first cosplay photo he got from Sona, the 'Magical Girl' Sona, and handed it over to Serafall.

"Wh-!?" Sona almost fell over again but manages to regain her balance. She's already prepared for Kisuke to act like this even before coming here, so before Serafall can touch the photo, Sona snatched it from Kisuke's hands and tore it up to many pieces before burning it with simple fire magic.

"Nooo!" Kisuke cried out for the loss but recovered immediately, "Whew~. Good thing I still have some copies under my pillow." He muttered softly, but Sona heard him loud and clear.

"You bastard! Why do you have multiple copies of this!?" Sona shouted as she runs upstairs unreservedly. Sona reached Kisuke's room and intruded it unhesitantly and reached out for his pillow on the bed. But after lifting the pillow, she didn't find any photos of her, only a porn magazine with the cover model slightly resembles her. Sona's head heated up and got tempted opening it, 'Why would Kisuke have something like this? I know he has tons of porn magazines, but why someone who resembles me?' Sona's head got preoccupied with the porn magazine in front of her that she almost forgot her original objective.

'Huh!? What am I doing!? I need to look for those photos first! It's not under the pillow like he said!' Sona got hold of herself and started searching the things under his bed but she suddenly remembered something important, 'Why would he hid it here if he got a separate space for this?... I got tricked again!!!'

Sona rushed back downstairs and the worst thing happened. Her elder sister, Serafall, is now holding not one but three of her cosplay photos.

"Ki-tan! I love you!" Serafall rushed to Kisuke and gave him a big hug.

Meanwhile, Sona was watching all of these and fell to her knees, defeated, "Nooooooo!!!"