"So characteristics are upgradeable?"
Having little to no education in this aspect, Wang Ye quickly looked up some information on the internet.
The search revealed that there indeed were upgradeable characteristics!
Generally, characteristics were not upgradeable since they were the pets' innate abilities.
However, through acquired experience and training, there was a very small probability of obtaining upgradeable characteristics.
Pet characteristics were generally divided into different grades, namely: White, blue, purple, orange, magenta, brilliant gold, and iridescent.
Other than these, there were also some special characteristics, such as the gray negative characteristic, the black mutated characteristic, and so on.
Then there were the upgradeable characteristics.