Caesar and Zara furrowed their brows in unison. All three problems appeared?!
"...Using the Race Upgrade Device on someone for the first time requires an immense and concentrated amount of energy. In most cases, the primary energy source is the individual themselves, causing their energy foundations to be completely drained, resetting their accumulated power to zero. This is a significant drawback, as it essentially forces the person to start over from scratch. However, since the giants never prioritized internal energy cultivation the way other races did, we circumvented this issue by supplying them with a substantial reserve of energy pearls as fuel, ensuring that their transformation process would not be hindered due to energy depletion."
