One dormitory against a monster that would take two hundred dormitories to defeat!
It was a crazy idea.
But Xu Lang might really be able to do it!
And he did not need to raise the intensity of Blood Hatred to the heavens all at once. He could take it slow.
For now, though, there was no point overthinking it. He should first squeeze every last bit of profit from this round, then consider the rest.
With that in mind, Xu Lang stopped hesitating and chose to upgrade the Zombie Virus Immunity Serum.
[Nightmare Coins -60] [Gene Optimization Serum] [Type: Medicine] [Level: 2] [Effect: After injection, increases Constitution by 3 points and grants immunity to viruses such as the zombie virus, influenza, and hepatitis B] [Upgrade Requirement: 145 Nightmare Coins] [Description: An excellent biochemical product. A subcutaneous injection is all it takes... I don't take protein powder when I work out. I usually take it after working out.]
"So it really is the Gene Optimization Serum." Xu Lang felt reassured.
This time, it was in the bag.
He did not use it and instead chose to upgrade it again.
Items that improved base attributes all followed one rule: using them repeatedly was useless.
Besides, three points of Constitution were not enough for Xu Lang to go wild with.
[Nightmare Coins -145] [Please choose one of the following upgrade paths within one minute.] [1. Superpower Serum: Grants a random superpower after use.] [2. Evolution Serum: Grants 4 Constitution, 2 Spirit, and greatly increases cellular activity after use.]
"Profits aren't losses until they're realized..." Xu Lang muttered as he chose the Evolution Serum.
The Superpower Serum was good, but it