Rita asked the group, "You guys get a discount when exchanging for empty skill crystals, don't you?" She had previously visited the exchange point and found that they only accepted her skill crystals for trade, with no option to purchase them with regular currency.
The group didn't hide the truth, explaining, "Yes, every three days, we get one free skill crystal. If you want to buy from us with in-game currency, it's 60 silver per crystal. That's a fixed price—no negotiation."
Back when Shadow.Q had offered her a trade of 1 skill crystal for 5 empty ones, the math worked out to exactly 3 gold.
"Friendship price, huh?" Rita thought sarcastically. She put away her boots just as the group prepared to haggle. But before they could utter a word, Rita flipped her hand, revealing one of her freshly crafted **Another Happy Day** skill crystals. "Want to trade? One skill crystal for seven empty ones."