Yugo Tennoji, a gruff yet compassionate landlord and CRT television shop owner, conceals a past forged through coercion and loss. Orphaned in Paris, he scavenged the sewers before a gellified human’s intervention led to his recruitment by SERN. The organization secured his financial survival in exchange for unwavering service, relocating him to Akihabara. There, he bonded with Suzu Hashida, a time-traveler cloaked in pseudonymity, and Tsuzuri Imamiya, his future wife. When SERN gellified Tsuzuri during her second pregnancy to ensure his compliance, Yugo’s existence narrowed to a singular purpose: shielding their daughter Nae from harm. Operating as FB, he manipulated Moeka Kiryu and fellow Rounders by crafting personas that exploited their vulnerabilities, binding them to SERN’s agenda. This duality—ruthless enforcer and devoted father—fractured his resolve, particularly when confronted by the fallout of his schemes. A reckoning arrives when his connection to Suzuha Amane’s former identity as Suzu Hashida unravels, exposing how his actions defiled her memory. Recognizing SERN’s view of him as disposable, he sacrifices himself in select worldlines to spare Nae and Moeka from reprisal. Within the 1% divergence stratum, he initially severs SERN’s leash, collaborating with former rivals to protect Nae from external threats. Yet later disclosures reveal dormant ties to the Rounders persist. Here, stripped of Suzu Hashida’s mitigating influence due to altered time coordinates, he embraces colder pragmatism, deploying interrogation tactics to neutralize dangers menacing his allies. His dynamic with the lab members occupying his building teeters between prickly tolerance and unspoken camaraderie. Though he grumbles about their experiments, he permits their endeavors—a tacit acknowledgment of their shared reverence for obsolete technologies, mirroring his CRT devotion. Employing Suzuha under a veneer of stern authority further underscores this duality, masking protective intent beneath employer strictness. Yugo’s choices cascade through Nae’s destiny. In timelines where he perishes, her anguish fuels a vengeful crusade against perceived culprits. Where stability prevails, he retreats into mundane routine, overseeing his shop and offering Moeka employment—a quiet atonement through ordinary life. A product of SERN’s machinations and paternal desperation, Yugo navigates systemic oppression with tactical precision, burning his home to obstruct SERN or secreting the IBN 5100. His narrative intertwines sacrifice, fractured loyalties, and the relentless interplay of cause and effect across realities, etching a legacy where survival and morality perpetually collide.