What Photon Drops are for?

[Reia]

I got 89 already and don't know in what to use them.

[BIG OLAF]

I'm curious as well. I've got like 97 or so. I hope they have some use.

[Griffin]

So they are in this game. Weren't Photon Drops made to be rare currency in PSO?

[Arika]

Currently no use yet, but they should be trade-able in the same shop that exchange gacha clothes for color ticket. Because that shop is purely made to exchange stuff.

[Griffin]

TAKE MY PHOTON DROPS.

[kyuuketsuki]

Currently no use yet, but they should be trade-able in the same shop that exchange gacha clothes for color ticket. Because that shop is purely made to exchange stuff.
Where is that shop, by the by?

[CapitalG]

Should be in the city, next to the room decoration shop. Not too far from where Xeno is.