Aries is a cardinal fire sign, known for their courage and determination, but they can be impatient and moody. Aries is one of the most active zodiac signs, enjoying physical challenges and disliking inactivity. Aries are dynamic, energetic, spontaneous, and temperamental. This sign is driven by an innate need to prove their strength, linking Aries with Luisa's gift of physical strength. Luisa relies on her strength, worrying someday, she might buckle under the mounting pressures of family expectations. As we learn in the song she sings to Mirabel.
Mars, the Roman god of war, rules Aries. Like Aries, the Greek god of war, Mars represents the spirit of battle; but in the Roman empire, Mars has older associations with agriculture, herds, and the fertility of springtime, the season Aries are born at the start of. As a Cardinal sign, Aries embodies the energy and attitude of eldest siblings, further linking this sign to Luisa. They are motivated leaders who take responsibility for getting things started, throwing themselves into activity each day, just like Luisa. Luisa embodies the physicality of the Ram, the symbol for Aries.
Like other fire signs, Luisa can be quick to lose her temper, flaring up in an angry outburst as she does when Mirabel questions her about the waning magic. Luisa, like Aries, might respond passionately at times, but they are honest, as we can see when Luisa hugs Mirabel, admitting her strength waned when Mirabel saw the cracks in their casita. Luisa, like Mars, the ruler of Aries, takes on the role of protector of her community, further liking her to this fire sign.