Teru Minamoto serves as the student council president at Kamome Academy's high school division. He is the eldest son of the prominent Minamoto family of exorcists. His appearance features blond hair, blue eyes, and a modified school uniform consisting of a cream-colored long-sleeved blouse with rolled sleeves. He always wears a red-and-white student council armband and carries exorcism tools, including a sword sheathed at his hip and a beaded bracelet on his right wrist. As president, he exhibits leadership and responsibility. His personality presents a duality: publicly perceived as kind, reliable, and popular, earning him the moniker "school prince," while privately he displays a stricter, more calculating nature, especially towards supernaturals and individuals like Vice President Akane Aoi. He enforces discipline, such as binding Akane with his bracelet as punishment. His core belief asserts all supernaturals inherently endanger humans and warrant exorcism, with rare exceptions like the harmless Mokke tolerated due to his sister Tiara's fondness. His exorcist abilities result from extensive childhood training. At age eight, he exorcised a major supernatural single-handedly using his sword and spirit lightning. Unlike siblings Kou and Tiara, who produce white lightning, Teru generates black spirit lightning. This black lightning inflicts severe damage, capable of injuring a target's soul directly and rendering powerful supernaturals like Hanako unconscious. His primary weapon is a sword, augmented by a versatile bracelet that extends and manipulates to restrain targets. Additional techniques include creating inescapable lightning cages and utilizing purification rituals with salt. Physical prowess complements his abilities, demonstrated by agility in rooftop navigation and effective hand-to-hand combat. Family relationships significantly shape him. As the eldest sibling, he feels deep responsibility for Kou and Tiara, acknowledging Kou's increasing independence with some wistfulness. He mentors Kou, occasionally collaborating on tasks like making doughnuts, though his own domestic skills are notably poor, often resulting in inedible outcomes or accidents. His parents include a deceased mother and an absent father, influencing his protective instincts. Within the altered New Present timeline, Teru retains complete memories from the original timeline—an ability termed "Memory Retention"—while his New Present counterpart's memories remain suppressed for approximately three days after the shift. This retention allows him to recognize the Clock Keepers' alterations and confront Akane Aoi. In this reality, he and Akane are childhood friends bound by an arranged family engagement, despite mutual reluctance. His core personality remains consistent, including manipulative tendencies, such as fabricating a relationship between Akane and Nene to advance his goals. Academically, he ranks at the top of his year, excelling particularly in English. He balances nightly exorcism patrols with student responsibilities, managing resulting fatigue through rest after school. Personal preferences include a fondness for sweet potatoes, enjoyment of snowfall for play, and a habit of squeezing nearby supernaturals like Mokke when stressed. Interactions reveal further dimensions. He initially served as the object of Nene Yashiro's affection before her bond with Hanako developed. His rule enforcement extends to dragging Akane away for disciplinary actions after incidents. During the "Mokke of the Dead" zombie event, he collaborated with Kou and Nene to resolve the outbreak. He also encountered the supernatural Mitsuba, intending exorcism before being interrupted.