After hearing his words, Elena immediately pressed down at the center of the card, as a large holographic screen appeared in front of her, with a red dot in the middle of it. She and Lain were immediately marveled at such a wonderful object. As Lain drew closer to Elena in order to see the card’s screen better, Emily also leaned in as well, as she turned her head to face her back where Elena was sitting, for a closer look at the screen in curiosity and bewilderment.

Looking at the complicated map screen, curiosity overwhelmed Elena, as she couldn’t help but reach towards the red dot on the holographic map, that was a few inches in front of her body. As soon as she touched the red dot, both her, Emily and Lain, immediately saw a complicated red line start to form, that shot directly from the red dot towards a distant region on the map, as the map seemed to zoom outwards. 

After a couple seconds, the long line that zigzagged through the map, went through a long wall on the map, and seemed to stop at their current location, connecting their current location to the red dot that was previously at the center of the map.

Seeing this, Lain was bewildered as he thought to himself ‘It seems, if we follow that line, it’ll lead us to the pet shop. What an interesting instrument.’ 

 Thinking these thoughts, he was curious to what an instrument truly was. But before he could ask Hui Shi a question, Elena had already pressed down at the middle of the card again in excitement as she blurted out to Hui Shi, while the holographic screen silently disappeared after her actions, “What is an Instrument?” 

Seeing the holographic screen disappear, she couldn’t even wait for Hui Shi to answer, as curiosity quickly overwhelmed her mind, as she pressed down on the card one more time, as the holographic screen appeared in front of her again. Seeing this, she was hopelessly entranced by the mechanics of the device and continued to press down on the card over and over again, while the holographic screen blinked in and out of existence, as Hui Shi decided to slowly answer her question anyway.

He then turned to Lain, as it seemed he was just as curious as her in finding the answer to her question, before saying in a dignified, and holy voice “An instrument is a magical device that’s created using the blood of powerful creatures. Using a creature's magical blood, individuals called rune crafters draw complicated lines on objects, using special techniques that enhance or alter the magical properties of the blood, in order to create one or more effects. These objects that have been carved on with blood are called instruments, while the complicated markings made out of blood that are carved on them are called runes.”