[A hundred minor units should be enough.] The Tower Spirit answered after contemplating for a bit but this made Max raise his brows in confusion.
"What's a minor unit?" he asked.
[Remember the amount of energy you used on that child Ling Han when he sacrificed his blood essence to wake me up?]
"Yes. So, that amount is a unit." Max muttered, feeling a bit helpless. That amount was around one fifth of his current maximum Nascent Energy and to replenish his Nascent Energy reserves, he needed to have sex with Esme at least two times if her pure yin energy was not at its peak.
Now, however, Esme wasn't available as she had just gone into secluded cultivation. Even if she hadn't, her pure yin was already thinned out, so he wouldn't be getting much Nascent Energy if he were to do it with her.
