Sitting on the ground in a small house on the city's outskirts, Prometheus guided the flask's disgusting scarlet liquid towards his mouth. The putrid smell made him gag, not to mention the ingredients Luna used. Only a fool wouldn't have understood.
'Humans for the life force, creatures for the mana.'
He closed his eyes, sighing at the horrific potion. Then, without hesitation, he downed it.
The next second, a burning sensation spread inside him as he felt his failing body recover its strength. Then, a boundless surge of mana assaulted his circuits. Like carps swimming against a river's current, it rushed towards his heart with terrifying momentum. However, dreadful shrieks and agonising screams accompanied those incredible boosts. The rancid taste of acid filled his mouth, and his face distorted into a grimace as he tried to digest everything.
'Focus on the energy!'