Choko was alert with the strangeness in Yui's eyes, it was very different from before, now they looked at her as prey, instead of a rival in love...
Nero laughed and walked away from Yui and started killing the monsters with his bow and arrow. She now only needed the final boss, as those may well die and she will use the cores to further strengthen her summons.
When she evolves, she prefers to use Monster Cores of the required level, as it is more useful. Mainly with the amount that is left over.
Putting her thoughts aside, she has already begun to rain arrows of black energy.
After using it three times in a row, the ads in her retina appeared of dragons being killed and critical damage.
Stopping as Choko and the rest have entered the battlefield, she starts shooting more common arrows, mainly the <Wrath Of The Valkyrie> and dropping the last attack on the earth dragon.