After Jacob started the massacre, he didn't stop with just the sturgeon region; he continued with the other remote regions under the Mighty Whale Empire.
Only after killing more than half of the next region to the sturgeon region and by absorbing all the blood did Jacob manage to replenish the cursed blood in his body completely.
Not only that, but once his body was fully replenished on his cursed blood, he found that he could still absorb more blood, and by doing so, the runic lines on his bone hand started to glow in crimson hue.
Jacob could feel that within those glowing lines were cursed blood, and their storage capacity seemed to be extremely high. He still didn't know just how much blood it would take to reach those runic lines' limit.
Furthermore, his blood manipulation has also refined further after collecting and absorbing so much blood through the water.
