TV-Series
Description
Kinshiki Otsutsuki is a fictional character from the Boruto: Naruto Next Generations anime and manga series, where he serves as a prominent antagonist. He is a member of the Otsutsuki clan, a race of powerful, otherworldly beings who travel across dimensions to harvest the chakra of planets to create a divine fruit and increase their own power. He acts as the loyal retainer and foster father to Momoshiki Otsutsuki, the arc's primary villain, and is frequently seen accompanying him on his mission to Earth to collect the tailed beast chakra.

In terms of background, Kinshiki, like others of his clan, is over a thousand years old and has a history of traveling between worlds. His name and design are inspired by Japanese folklore, drawing from the legendary figures Kintaro and the warrior monk Musashibo Benkei, reflecting his immense strength and unwavering loyalty to a master. He himself was once a subordinate to another Otsutsuki who sacrificed themselves to pass on their power, a tradition that foreshadows his own eventual fate.

Kinshiki's personality is defined by his stoic demeanor and absolute devotion to Momoshiki. He is fiercely loyal and protective, acting as both a guardian and a servant, and even addresses Momoshiki with the honorific "-sama." This dedication is so profound that he does not hesitate to sacrifice himself to become a chakra fruit for Momoshiki to consume, showing no signs of anger or betrayal as he willingly submits to this fate to empower his foster son. Despite his generally serious and composed nature, he possesses a vengeful and vindictive streak. After Sasuke Uchiha cuts off one of his horns during their first encounter, Kinshiki becomes relentlessly determined to kill Sasuke in retaliation, even attempting to target his daughter, Sarada, in the chaos of their attack on Konoha.

His primary role in the story is as a formidable enforcer and partner to Momoshiki during their invasion of the Hidden Leaf Village. Their goal is to gather the nine-tailed beast chakra that was scattered on Earth following Kaguya Otsutsuki's betrayal of the clan. He acts as the muscle to Momoshiki's strategy, engaging powerful opponents in direct combat to clear the way for Momoshiki to absorb chakra. His most significant act in the narrative is his final one: when Momoshiki is pushed to his limits by the combined efforts of Naruto Uzumaki, Sasuke, and the five Kage, Kinshiki willingly allows himself to be transformed into a chakra fruit, which Momoshiki consumes to gain a tremendous power boost and transform into a more formidable state.

Key relationships are central to his character. His bond with Momoshiki is his defining trait. He is not merely a servant but a parental figure who raised him, making his ultimate sacrifice a complex act of devotion that reflects the Otsutsuki clan's unique and ruthless methods of passing on power. He also shares a deep animosity with Sasuke Uchiha, which begins when Sasuke infiltrates one of Kaguya's dimensions. Their rivalry is physical and personal, with Kinshiki holding a grudge over his broken horn and seeking to prove his superiority in combat. He has little regard for any other beings, viewing humans as inferior, which is exemplified by his willingness to attack non-combatants like Sarada to achieve his goal of revenge against Sasuke.

Kinshiki undergoes little personality development; he remains a steadfast and loyal warrior from his introduction to his death. His story arc is one of service and sacrifice, culminating in his final act of devotion. His physical form is destroyed, but his power lives on through Momoshiki, fulfilling his role as a provider for the next generation of his clan.

Kinshiki is renowned for his notable abilities, which focus on overwhelming physical strength and chakra manipulation. His raw power is immense, allowing him to clash equally with Sasuke Uchiha, one of the world's strongest shinobi, and he was considered a threat greater than Kaguya Otsutsuki herself. He can fly and possesses the Byakugan, granting him near-360-degree vision and the ability to see chakra and its pathway system. His signature technique is the ability to manifest a floating red ring of chakra behind him, from which he can instantly create a variety of different weapons, such as axes, blades, and kanabo, which he wields with masterful proficiency. He also demonstrated the ability to use Space-Time Ninjutsu to travel between dimensions, a common skill among the Otsutsuki. In combat, his fighting style is a direct and brutal assault, using his superhuman strength and conjured weapons to overpower his enemies.