A Pair of Lovely Girls

The girl on the left is Nagi Arato and the one on the right is Ruri Tanigawa. Both of them are in their swimsuits.

Ruri Tanigawa and Nagi Arato

These girls are enjoying themselves after looking for rare gemstones and rocks during their research. Just appreciate their hard work for making mineralogy fun.

Ruri Rocks OP

This OP theme song is called, "Hikaru no Sumida" by Rei Yasuda and I hope you can enjoy rock and mineral collecting and analyzing from these girls.

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