Plague of Destruction

"200 mana, right? I don't mind, but how do I give you more mana?" Leo said a moment later.

"Are you sure you want to increase the mana supply to 200? If so, I will request for it through the Slave Mark." Lilith said.

"Huh? You can do something like that?" Leo raised an eyebrow.

"Yes. Like this…"

<Soul Slave 'Lilith' requests for 100 additional mana to strengthen her soul>

"Accept." Leo calmly said.

Ding!

<In order to sustain Soul Slave 'Lilith', you will lose 200 mana every second>

[Mana Regeneration: 1625]

Now instead of recovering 1525 mana every second, he only recovers 1425 every second, which is still more than he really needed.

"Thank you, Leo!" Lilith was all smiles as she could feel more mana flowing into her soul.

"Hey, Lilith."

"What's up?"

"Let's increase the mana to 300 a second."

"Huh?" Lilith's eyes widened with surprise after hearing his words, not daring to believe her ears.