[Kikuchi]

You won't hear anymore of it. If you wanna know about it, though :

Spoiler for Pendant:

It was actually Tear's mom's. In the game, you can trigger a sidequest where Luke tries to get it back for Tear, by finding the merchant he sold it to.
If you can afford it by the time it is first available, it's a damn good accessory, increasing magic attack and defense by 20%