A Perfect Level Up refers to a rare occurrence when a playable unit level ups and acquires all possible stat gains. This has an extremely low chance of happening due to the variations in the growth rates for each character. Pre-Promoted characters tend to have a lower chance than non-promoted units of gaining a Perfect Level Up naturally, due to their stats normally being set at lower rates as a result of their promoted status, whereas characters belonging to the Est archetype tend to have better chances due to possessing higher total growth rates than most other units. The only character to be guaranteed to obtain a perfect level up is Karel from Fūin no Tsurugi, due to his incredibly high growth rates, all of which are 100 or greater.