As the life of the beast vanished, its body stopped trembling, and Axel huffed loudly, slightly out of breath. After a minute or so, he began carving out the core from it. He didn't need to sell the body of the beast; he could use it to make some weapon or accessories later on. But the core had another use, so he needed to carve it out from the beast.
As he was done with that, he brought out a vial of potion from his space ring with a mental command. He started to gulp down the potion to recover his mana, 30% was just too little; he was barely even supplying the sword with his mana, and that alone finished all of his reserves. He couldn't empower his magic circuits, nor his runic eyes, nor his runic weapons.