Rean and Min narrowed their eyes once they heard that. Should they try to stop Blansin now? It's because Erla's Clendes Sea Heart had been sealed that her talent didn't develop. If they allowed Blansin to do that first, she would recover that so-called enormous talent and power, right? She might not be anywhere close to Clendes Sea, but the heart alone probably would help her a lot.
However, there was also the possibility of her dying. The black pearls were used to keep the heart from going out of control and potentially killing Erla. Blansin mentioned that it was supposed to be the case until the day Erla got strong enough to control the heart on her own. The question was whether Erla was already that strong enough or not.
However, Min gave up in the end. 'Forget it! I don't care how strong she might become in the future. If there's a chance of her dying because of the heart's problem, then let it be sealed for all eternity. We need to stop him!'