Shun was taken aback. She inquired, "Um... Sota-kun, are you... alright?" Ranzhe arched an eyebrow, incredulously asking, "Hold on a second. You didn't actually do this and that to him in public, did you?!" He was nearly on the brink of cackling like a maniac. Izumi shot him a fierce glare. Ranzhe remained unfazed, secretly thinking, 'Oh my goodness. What an adorable little angry bunny!' Sota lifted his gaze, looking like a creature risen from the grave. Izumi nearly toppled over at the sight. Sota retorted, "No, you fuckin' idiot." Sota declared, "Let's eat," his face as blank as a porcelain doll. Yet, Shun, who had been by his side the longest, could sense the silent tears hidden beneath that stoic facade. As they all dug into their meal, Ranzhe glanced up from his phone and said, "Shun-chan, the young master is calling for you." At that moment, Sota's phone chimed, prompting him to say, "I... my brother is calling me too." They all rose to their feet, and Sota inquired, "Which way are you headed?" They gestured in a direction, and Sota replied, "Us too," indicating Izumi and himself.
Once they piled into the car, Sota added, "We'll get off first if that's alright, as Nii-san mentioned it's urgent." Shun nodded in agreement. The driver, clearly intimidated by Sota's temper, sped off. They arrived at the Hyoza mansion, and Shun asked, "How did you know where I was getting off?" Sota replied, "I'm getting off here." Their eyes locked for a brief moment, both still puzzled. The four of them exited the vehicle and entered the mansion, where Sota exchanged nods with Shuji, who reciprocated. Sota turned to Alexis and asked, "Preponed, I assume?" Alexis nodded in confirmation. Shun embraced Shuji and Koji, launching into tales of her school life and daily grind. Meanwhile, Sota struggled to keep up. Alexis then asked, "How do you know Shun?" Sota replied, "She's my childhood friend," omitting the details of their relationship, still unsure of the situation. Alexis then exclaimed, "What a coincidence! Sota, meet your half-sister!" Shun caught that and exchanged incredulous glances with Sota before they both erupted into uncontrollable laughter. Shun exclaimed, "Me? Him? Half-siblings?" and laughed again, while Sota, unable to contain himself, echoed, "This is not happening!" Koji was gazing at them with the most perplexed look imaginable. "Why are you laughing?" he inquired, his curiosity piqued. Shun, with a cheeky double thumbs up, replied, "Nice joke," clearly unconvinced. In a moment of playful mischief, she tumbled onto Sota, who was perched on the bed. He caught her effortlessly, and suddenly she found herself comfortably seated on his lap. If Koji's expression had been odd before, it had now escalated to a whole new level of bizarre. Through clenched teeth, he commanded, "Shun, get off of him." Shun, unfazed, retorted, "I know for a fact he's not my half-brother; I'm not that dense. And chill out, he's my ex." Shuji, Alexis, and Koji instantly abandoned their belongings, their expressions mirroring the shock of having heard the impossible. Alexis, wide-eyed, inquired, "What? Can you say that again?" Sota replied, "She's my ex?" To which Alexis retorted, "No, darling, she's your damn half-sister! This isn't a joke. And for heaven's sake, Shun, get off him!"
Sota and Shun exchanged a knowing glance before declaring, "We need to talk about this," and promptly exited the room. Shun then advised, "Alright, just take a breath. No need to panic. If we stay tight-lipped, they'll be none the wiser." Sota, trying to jog his memory, inquired, "None the wiser about what?" Shun rolled his eyes and replied, "About our little escapade? Seriously? Or should I break it down for you? S-E-X." A sudden epiphany washed over him, and Sota collapsed into Shun's embrace. Meanwhile, Shuji lingered at the doorway, utterly bewildered by the scene unfolding before him. Shun pleaded, "Please, keep this between us. I'm begging you. And could you lend me a hand with this guy? He's a real heavyweight." He gestured toward Sota, who towered at 183 cm, a stark contrast to Shun's petite 165 cm frame. Shun was desperate to support him, doing her utmost to prevent him from tumbling to the ground.