PS: Some people say the success rate for advancing to Fourth Rank is too high. After giving it some thought, I admit it was exaggerated, so I've made some changes, which are detailed below.
...
Hearing this, Song Chi frowned.
"Only 28%? Is it that difficult to increase?"
Keep in mind that after killing that Golden Armored Giant Beast and adding that drop of the Vampire Marquis's Primordial Blood, the success rate had already reached 22%.
Now, if it's only 28%, that means nearly three months have passed, and with the assistance of many family members, the Furious Lion with the combat power units of Third-Rank aliens has been killed at least a hundred times, and yet that's only increased the success rate by 6%.
By such calculation, the success rate provided by a Third-Rank unit is only about 0.05%. This alone is sufficient to demonstrate the difficulty of a Cruiser advancing to a Zhulu Warship.