I feel silly, do I have to do something special to give an item to a character? I can't trigger Repairs even though I have Pure Etherium. Don't see an option when I go to Taile's Shop (options are just to work for her, shop, or leave), and going to my inventory and clicking the item just shows a text description.
Thanks for the reply! Yeah, I got the Pure Etheria. When I go to the "You" menu, my inventory has an item called Pure Etheria, with the description "Etheria in it's purest form. (Value: 0)", and I got the cutscene in the forest where MC absorbs the Etheria. The wiki mentions a hint for the event that you have to give Taile the Etheria, so I tried looking for an option to sell the item to her, but that doesn't seem to be available either.