Summer: her aura is like a massively expansive and tranquil ocean.

Ariella: her aura is incredibly intense. It’s like a radiant, raging fire.

Summer and Ariella are kinda opposite when it comes to aura. Summer has much larger and potent aura, but it’s so calm it’s easy to miss. Meanwhile Ari’’s aura is so intense that it’s vaguely able to be felt by even non-aura users. This is a big part of why Ari can appear so intimidating to others.