· The Game Between Blank and the Ex-Machina

Inside the royal palace, the air fell into dead silence. Everyone stared in disbelief at the thirteen Ex-Machina before them, each with one hand on her hip, acting cute. None of them had ever imagined that girls who had looked so mechanical just moments ago would do something like this.

"Hmm? Onii-chan, is something wrong?"

Just then, the Ex-Machina who looked like a big sister with long purple hair tilted her head, pressed a finger to her chin, and looked at Sora with an unbelievably adorable expression. Her watery eyes held a trace of confusion and playfulness, making it impossible to connect her with the emotionless girl from before.

".I. No."

Sora's mouth twitched as he looked at the Ex-Machina big sister right in front of him. That cute, playful manner perfectly matched the little sister he had once fantasized about. Worse, there were thirteen of them all at once. It instantly made Sora, a socially anxious shut-in and sister complex incarnate, so flustered he could barely speak.

"No? Unable to understand. According to prior observation and analysis, Sora-oniichan, you are clearly a hopeless siscon."

The long purple-haired big sister blinked at Sora as if she had seen right through him long ago. Her face displayed just the right mix of tsundere disdain and happiness, as though she really were a little sister who had discovered her perverted older brother's inner thoughts, secretly pleased yet somewhat disgusted because of her tsundere nature.

"!!!"

The instant he saw the long purple-haired Ex-Machina big sister like that, Sora felt as if his heart had been struck hard. The soul of the shut-in and siscon within him began to blaze. Just as he opened his mouth to say something, a small hand suddenly clutched tightly at the hem of his clothes.

Sora instinctively