Tadanori Sanbe is a university sophomore with a well-built physique and a striking presence, who transforms into a monstrous form featuring a skull-like face, two horns, and arms resembling massive, razor-sharp swords. Despite his fearsome appearance, he is courteous, striving for strength and challenging coin collectors to deadly duels, even when not motivated by the alien coin quest. He crosses paths with Shuichi Kagaya and Claire Aoki, ultimately siding with them after witnessing Claire’s determination and being moved by Shuichi’s spirit. Although formidable in combat, Tadanori is surprisingly shy around women, showing a softer, more human side.
Tadanori has a muscular build as a university student.
His monster form features a skull-like face, two prominent horns, and gigantic arbored arms shaped like sharp swords.
This monstrous transformation makes his offensive and defensive abilities nearly flawless.
Tadanori is driven by an obsession with strength and power.
He is highly polite and conducts himself with a sense of honor, even during battles where lives are at stake.
Despite his terrifying looks, he shows respect toward others and can admit defeat gracefully.
He is inexperienced with women and is flustered when confronted with Claire Aoki in her underwear, revealing a bashful side.
He is a second-year university student with a history of physical conditioning and training.
Motivated by his aspirations for power, he willingly obtained his monstrous abilities.
Unlike most coin collectors, he participates in combat solely for the thrill of risking his life, independent of the treasures or rewards.
Tadanori’s main power is his transformation into a giant monster.
In this state, he sports a skull-faced visage, two long horns, and oversized, blade-like arms with extraordinary sharpness.
His body is extremely tough, as demonstrated when he sustains only minor wounds from Shuichi’s firearm.
His offensive skills are equally formidable—he once cleaved a transformed opponent in half with a single blow.
Overall, he possesses a near-perfect balance of attack and defense capabilities.
He faces off against Shuichi Kagaya and Claire Aoki during his relentless battles against other collectors.
After witnessing Claire’s life-risking determination, he is moved enough to accept defeat voluntarily.
Developing respect for both Claire and Shuichi, he joins forces with them as a trump card in their coin-hunting quest.
His awkwardness around women contrasts with his otherwise fearless personality.
Voice actor: Hiroki Yasumoto voices Tadanori Sanbe in the anime adaptation.
Although intimidating in appearance, he is friendly, courteous, and sometimes easily embarrassed.
He fights primarily for the excitement and to test his strength, not out of greed for alien coins.
“I longed for strength—now prove to me you’ve got it, too.”
“I’m prepared to risk my life. Are you?”
Encounter with Shuichi Kagaya and Claire Aoki
Seeking worthy opponents in life-or-death battles, Tadanori confronts Shuichi and Claire. Despite his overwhelming power, he is detained by Claire’s desperate willingness to risk everything, which leads him to rethink his motivations.
Turning Point and Alliance
Moved by the courage Claire shows and impressed by Shuichi’s steadfastness, Tadanori admits defeat of his own accord. He then becomes their ally, promising to use his strength to assist them in the search for alien coins.
Revealing True Character
While terrifying on the battlefield, Tadanori’s true colors are also revealed in quieter moments—his bashfulness when confronted with Claire’s femininity adds layers to his otherwise intimidating persona.
He is a key supporting character in “Gleipnir,” with a formidable presence that belies his surprisingly gentle and honest core.
His journey is a reminder that appearances can be deceiving, and genuine strength sometimes includes the courage to respect, cooperate, and care for others.
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