Auto-translated
One weekend day, while riding in a carriage on the way to the torture chamber, Futaba flips through Elliot's textbook.
Apparently, its author, whoever this Laurin E.S. was, believed that solving such strange problems would somehow develop a person's personality for the better. Although, most likely, while generating these tasks, he was pleasuring himself under the table with his free hand.
Be that as it may, leaving such a book in existence would be very dangerous for society. The example of Elliot showed what this manuscript is capable of if it falls into the wrong hands, and he hasn't even managed to do everything yet. It was necessary to leave this evil buried in the dust behind the counter, where mortals would never find it.
The only way to overcome the cursed artifact and eradicate the evil it emanated was through complete and unconditional victory over it.
"I have a serious question for you, son," Futaba shifts her gaze from the textbook to Alidum. "Which girl at school do you like?"