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"So, please explain. The reason why you are chasing Index." Qin Hao looked at Kanzaki Kaori and said.

Faced with Qin Hao's question.

After a moment of silence, Kanzaki Kaori spoke with a guilty look on his face.

"Actually, Index and we were best friends."

"But in order to protect Index and allow her to continue to live."

"We had to erase Index's memory from a year ago and make her completely forget about our existence."

"So, now she no longer remembers us, nor does she remember the real reason why she was chased."

"Because of this, Index probably thinks of us as magicians who want to rob the one hundred and three thousand magic books, so she chooses to keep running away from us."

Hearing this answer, Index poked her head out from behind Kamijou Touma with a confused look on her face.

"But, why are you chasing her? And you injured her so badly."

"Since we were friends, you just need to reveal your identity, and then you can leave with her, right?"

"Why do you have to use this method to hunt down that child?" Misaka Mikoto asked in confusion.

Faced with Misaka Mikoto's inquiry, Kanzaki Kaori sighed.

"The monastic uniform 'Mobile Church' worn by Index has absolute defensive capabilities."

"But for some reason, the 'Mobile Church' was damaged. By the time I realized this, it was too late to stop."

Hearing this, Kamijou Touma, the culprit, subconsciously turned his head.

"As for the reason why we are chasing Index..."

"To save her."

"...Do you know about the ability to fully remember?"

"Complete memory? It's photographic memory, right? I remember there seem to be a few people with this ability in Academy City. But they all seem to be level 1 ability users..." Misaka Mikoto replied subconsciously.

Kanzaki Kaori continued.

"In this case, you should be able to understand our approach."

"Eighty-five percent of Index's brain capacity is used to memorize the one hundred and three thousand magic books."

"Because of this, the brain capacity she can use is only 15% of that of ordinary people."

"Because I will remember everything I see without reservation, so if I continue to remember it like ordinary people..."

"That child, Index, would have saturated her brain, which would be life-threatening."

"So for Index's safety, we must erase her memory every other year."

"Since there are people with such abilities in your Academy City, you should be able to understand what we are doing, right?"

Kanzaki Kaori's words directly shocked Kamijou Touma and Misaka Mikoto.

Kamijou Touma subconsciously looked at Index. "How could it be... Index? You..."

After a moment of silence, Misaka Mikoto came back to her senses and the corner of her mouth twitched. Looking at Kanzaki Kaori, he couldn't help but complain.

"So, where did you come to this conclusion?"

"Fifteen percent of the brain's capacity can only store one year's worth of memories?"

"It's not like there aren't people in Academy City who have photographic memory. I've never heard of anyone in Academy City having their memory deleted."

"And is the content of one hundred and three thousand books really a lot? As far as I know, there are many researchers who have read more books than this number."

“Not to mention anything else, there are tens of thousands of books written using calculation formulas using superpowers.

"How can it be possible that the contents of one hundred and three thousand books occupy 85% of the brain's storage."

"Speaking of which, how did you calculate figures like eighty-five percent and fifteen percent?"

"If we really calculate based on your data, then by the time a person with full memory ability lives to the age of seven, his brain will be completely overloaded, right?"

"The human brain is designed to store 140 years of memories."

"Even people with photographic memory cannot forget any of the trivial events in their lives."

"Memory cannot exceed the load of the human brain."

"What's more, people don't have just one kind of memory. No matter how much knowledge is put into it, based on the current concept of brain medicine, it will never overwhelm the memory."

Misaka Mikoto's words made everyone except Qin Hao confused again.

"Impossible, absolutely impossible! The church clearly said..."

As he said that, Kanzaki Kaori suddenly fell silent.

Although she is young, Kanzaki Kaori, who once became the female pope of the Amakusa-style Cross Church, has a lot of experience.

After some digging, she instantly realized that she and others might... have been deceived by the church?

Kamijou Touma scratched his head.

"So you were deceived by the church. But then again, Bilibili, you know a lot."

"I told you not to call me Bilibili, you bastard! This is common sense, common sense! You...ah, I almost forgot. You are only level 0. That's okay."

"Hey, what's going on with your tone! You're talking like I'm an idiot!"

Kanzaki Kaori was stunned for a moment, then turned his eyes to Misaka Mikoto and asked.

"Then why does Index have a headache? The closer it is to the deadline for erasing memories, the more severe Index's headache symptoms will be. What is going on?"

"This..." Misaka Mikoto scratched her head.

Qin Hao shrugged and said.

"What else could it be for? Of course it's to prevent Index from escaping."

"You also said that there are 130,000 magic books recorded in her mind."

"Since Index is so important, the rulers of the church will naturally prepare some precautions for her to prevent her from escaping."