The Advice of an Assistant

I'll give you a hint. There's a magic item that can fix the Cracked Black Crystal. If you want to appease Spiruna...

It's called 妖精の粉. It's the dust that falls from fairy wings. You can fix the 壊れた黒水晶 with it, but so many people want that dust these days, it won't be easy to find. Maybe Kriel the Fairy in Orbis knows where to get some.

What happened?

Hold on! Give me some time to prepare myself.

If you have 妖精の粉, you can fix the 壊れた黒水晶. Then Spiruna would talk to you! Ask Kriel the Fairy in Orbis about 妖精の粉.