After Aoko and Arisu placed the videotape into the machine in confusion, the television immediately began playing footage that made their eyes widen...
The male lead was Shirou Amamiya, and the female lead was Touko Aozaki.
Even Shirou's true lover, Aoko Aozaki, and his mistress, Arisu Kyōnoji, had never seen that expression on Shirou's face...
"..."
It was like opening Pandora's box. This was the beginning of their descent into darkness.
That evening, Shirou was kidnapped on his way home from school and locked in the basement of Kuonji Mansion for an entire week.
Six days and seven nights—that was the total time the poor boy was endlessly "tormented" by the True Magic User and the witch.
When he saw sunlight again, he had lost a full six jin.
Fortunately, after Shirou's tireless efforts, Aoko and Arisu ultimately magnanimously forgave him.
Not only that, Touko Aozaki later even became a frequent guest at the mansion... but that was another story.
The skills Aoko and Arisu now used to please their man had been learned through competing with Touko. Shirou did not know whether he should be happy or unhappy about that.
Back to the original question.
The boy thought: The reason my life took such a wrong turn was definitely your fault, Touko!!
"Shirou?"
"Sorry, Arisu... could you wait a moment?"
Although he wanted to respond immediately to Arisu's adorable yet reserved invitation, after thinking it over, Shirou reached the conclusion that he had to stop the Aozaki Sisters first. Otherwise, things might somehow develop into the Fifth Holy Grail War.
"All right."
Arisu was clearly puffing out her cheeks in displeasure. Shirou gave her an awkward smile and gently kissed her cheek to comfort her.
Then Shirou faced his lover, who was wrestling for real with her sister--
He