One of the mercenaries hired by Dio Brando to kill Jotaro Kujo and his group, Arabia Fats attacks them while they cross the Arabian Desert, using his stand The Sun. The group only notices they're under attack when Joseph Joestar looks at the clock, which is marking 8:00 PM, even though the sun is still high in the sky. As they realize the sun itself is a stand, the temperature starts rising, so they attempt to locate its user, which should be observing them closely. When Kakyoin attempts to attack The Sun, it retaliates by shooting fireballs, so Jotaro digs a hole in the ground to protect everyone. However, they soon notice a peculiar rock, which looked like a mirrored image of another rock to the right, so Jotaro throws a rock at it, which breaks through what looks like glass, immediately making the Sun disappear. As it turned out, the user was hiding himself behind a mirror, cooling himself with an air conditioner and cold beverages.
Arabia Fats controls the stand The Sun, which is basically a replica of the actual sun, lighting up the whole place while making the temperature rise fast. If it is attacked, it will automatically retaliate with fireballs.