If there are only one or two protective enchantments around the heart and body, indicating an incomplete "Three Fires," those would be the illegitimate disciples. The Immortal Palace and Immortal Families place great importance on the distinction between legitimate and illegitimate offspring. Illegitimate disciples not only receive incomplete teachings but also face restrictions, and sometimes they are even used as cauldrons for others to extract and drain their cultivation.
Therefore, you should pay attention to these people's appearances. If they look good, they are probably attendants or pampered servants raised by the legitimate families, who won't be taught much in martial arts to prevent harming their masters. If they look sturdy, then they are likely being trained as Heavenly Soldiers and Generals, and will certainly learn some powerful body-fortifying techniques, so be careful not to engage them in close combat.
