It is wizardry

"While One piece is a masterpiece, you start to get a bit bored after crying on the same parts for the twentieth time," Sakaki said. "As such, I decided to compile all my knowledge and as much information I could from the facility over the years, that was easy thanks to electric magic."

Sakaki's explanation continued, delving into the intricacies of his ability to "download" information through electric magic. He explained that this skill, honed over tens of thousands of years, required an extraordinary level of proficiency with manipulating electrical signals. 

Rain was fascinated by the concept, expressed a desire to learn this skill. However, Sakaki made it clear that mastering such a complex ability would be a gradual process, demanding a profound understanding of electric magic and a strong connection with the flow of information. Despite the challenges ahead, Rain was determined to embark on the journey of acquiring this unique and powerful skill.