Seeking A Special Ingredient

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"A fairy girl with pink hair and wings?"

After we explained things to the grandpa fairy, we quickly gave him the same description the engineers gave to us about this fairy girl. He began to caress his beard, looking around. He was thinking, but very slowly. He was very old so I could understand he had to take things slowly.

He slowly sipped some tea and sighed, looking back at us after almost three minutes of thinking.

"I don't remember…"

"Eh?!" Nieve cried in surprise.

"Ugh, this is hopeless…" Sighed Titan.

"I-Is there a way to make you remember, grandpa?" Sighed Achlys.

"Hmm… If I only had some of that herbal tea… Kachi Herb is able to help me remember stuff, but since the curse started spreading that nobody had gone outside to pickup herbs, so I haven't found any to make tea." Sighed the old man.

"Kachi Herb…" I muttered. "Where can we find it, do you have a clue, grandpa?" I asked gently.

"Hmmm… I've heard… Err, I think it was… Ah, I don't remember." He sighed.