Angelina Kudou Shields, also known as Lina, is a quarter-Japanese magician and the granddaughter of Kudou Ken. She serves as a high-ranking officer in the USNA military’s elite magician unit called Stars, where she holds the title Sirius as a registered Strategic-Class Mage. She wields the unique gravity and stellar plasma manipulation magic Heavy Metal Burst for devastating offense. Her other magical abilities include Molecular Divider, Dancing Blaze, Muspelheim, and the illusion magic Parade, which she uses to disguise herself with crimson hair and golden eyes under the alias Angie Sirius. Lina has blond hair, blue eyes, and a mature gaze, often securing her wavy hair with ribbons; her beauty is frequently compared to Shiba Miyuki’s. Dispatched to Japan during the Yokohama Disturbance, she was infected by a Parasite, but Tatsuya Shiba saved her life by using his Decomposition magic to remove it. This rescue forged a profound sense of gratitude and personal loyalty toward Tatsuya, distinct from her military allegiance. Later, she enrolls as an exchange student at First High in 2095 to investigate Japan’s suspected harboring of an unregistered Strategic-Class Magician. Her personality blends military discipline with personal vulnerabilities: she is polite and friendly yet easily flustered, and she possesses a gentleness that seems incongruous with combat. She harbors unadmitted romantic feelings for Tatsuya while acknowledging his engagement to Miyuki. Over time, her beliefs about a magician’s obligations evolve. During the Stars Rebellion, she defects to Japan with assistance, is formally adopted by Toudo Aoba, and naturalizes as Toudo Rina, serving as Miyuki’s permanent bodyguard under Yotsuba patronage.