Elzes Killard, a visionary scientist from the future, spearheads a research institute dedicated to advancing time travel technology. Collaborating closely with the government, he ensures its ethical application, rigorously opposing alterations to the past. His unkempt appearance—long blond hair and black glasses—mirrors his chaotic lab, cluttered with scattered garbage and research papers, a testament to his relentless work ethic and habitual neglect of personal hygiene during prolonged experiments.

As Canon’s mentor, Elzes supplies cutting-edge technology to assemble allies Fubuki, Toramaru, Tobitaka, Hiroto, and Fidio for Raimon’s clash with the Ogre team. Through a discreet listening device, he guides Canon and monitors matches, erupting into joyful tears at Raimon’s triumph. He champions soccer as a transformative medium for youth communication, emphasizing its role in fostering teamwork and emotional growth.

The light novel delves deeper: uncovering illicit tampering with the past targeting Canon’s great-grandfather Mamoru, Elzes confronts a potential institutional scandal. Bound by ethics yet loyal to Canon, he discloses the threat but resists Canon’s resolve to intervene. Reluctantly yielding to Canon’s determination, he grapples with conflicting duties to protocol and personal bonds.

Beneath his enthusiastic, kind demeanor lies a mind consumed by research, often overlooking his environment. Yet his compassion persists, driving his commitment to safeguarding history’s integrity and nurturing the emotional resilience of those he mentors.