Fire and Water

"Alright, place your hands on it," Astra ordered. 

Right now, Vaan, Astra, and Elara were inside a bright room, and in front of them, there was a 3-meter-long transparent crystal of an irregular shape. 

This was the Affinity Stone, a device that was used to measure the Elemental Affinity of a human. It was found in nature and the bigger the size of the crystal, the more accurate readings it took. 

Normally, these crystals were 8-10 cm long, of course, there are some lucky ones who have found some bigger ones as well, however, the Vesta Family was the only Family who had access to such a huge Crystal. The other crystals found elsewhere may give a wrong reading or might not even give a reading, however, this Crystal had never given a wrong reading ever before.