"-Roland!"
At his casual greeting, Mikoto Misaka let out a low, furious growl.
Like a little girl whose candy had been snatched away, she bared her teeth slightly and glared fiercely at Roland.
"Huh... th-this reaction? Could it be..."
Seeing the intense annoyance in Mikoto Misaka's bright eyes, Kuroko Shirai's lips twitched involuntarily.
She should have been pleased to see her beloved sister feel annoyed with someone as wicked as Roland.
But Kuroko Shirai knew Mikoto Misaka's personality well. Although she lacked the arrogance expected of an Esper, she was not outgoing enough to take the initiative in forming close relationships, either.
When it came to people who did not interest her, never mind getting angry, she would not even bother arguing with them.
Such intense emotion was proof of just how much Roland mattered to her.
Recalling Roland's earlier behavior, Kuroko Shirai suddenly turned pale.
"Has this man defiled you too, Sister?!"
"Who are you calling defiled?!"
At Kuroko's shriek, Mikoto Misaka's already annoyed face flushed crimson at a visible speed.
This rare display born of pure embarrassment, contrasted with the girl's earlier dignified bearing, even gave her a captivating radiance.
But Kuroko Shirai no longer had the leisure to appreciate this precious sight.
"Crack-!"
After a moment of silence, Mikoto Misaka decisively reached out and seized Kuroko Shirai's chin, preventing her from uttering anything more outrageous.
"What nonsense are you spouting-!"
Arcs of electricity rapidly rippled through the ends of her hair, using the girl's embarrassment and anger as a medium to pour into Kuroko Shirai.
"I'm sorry, Sister!"
Only when Kuroko, tingling all over, began trembling and begging for mercy did Mikoto Misaka's intense emotions subside a little. She stamped her foot hard.
Misaki Shokuhou, who had been enjoying Mikoto Misaka's embarrassed, furious expression, also frowned slightly