Cylira is a character who appears in the second season of the anime To Your Eternity. He holds the position of Grand Cardinal within the Church of Bennett, which makes him a figure of significant religious and political authority in the world. In this capacity, his primary narrative role is that of an antagonist, as he denounces the immortal being Fushi not as a divine entity but as a demon that must be captured and destroyed.

In terms of physical appearance, Cylira has an androgynous look, characterized by sharp and thin facial features, long eyelashes, and hair that reaches past his shoulders. His typical attire consists of long, collared white robes, a necklace bearing the holy symbol of his church, and an embroidered miter adorned with a gem.

His personality is defined by narcissism, deceit, and corruption. Cylira is a self-serving individual who routinely exploits others for his own personal gain and to maintain the power of his church. He is largely responsible for spreading the false rumor that Fushi draws the Nokkers, a deadly enemy, seeing the immortal's existence as a direct threat to the Church of Bennett's influence. He uses this fabricated threat as a justification to suppress Fushi and anyone who allies with him. A common pattern of his behavior is to make false promises without any intention of keeping them. He breaks his word as soon as he has achieved his objective, demonstrated when he reneges on a promise to support Prince Bon's claim to a throne and when he orders the arrest of Fushi's friends despite their cooperation. He is known to gloat openly and takes visible joy in his perceived triumphs over his adversaries, believing himself to be inherently superior to others. This arrogance ultimately becomes a weakness that another character, Kahaku, exploits to dismantle the church's corrupt leadership.

Cylira's key relationships are defined by his enmity towards Fushi and his manipulative interactions with others, particularly Prince Bonchien Nicoli La Tasty Peach Uralis, commonly known as Prince Bon. He uses Bon's political ambitions as leverage, offering the church's endorsement in exchange for custody of Fushi, only to betray him and declare Bon a heretic. During a specific incident in a town, Cylira confronts Bon's group and subjects Fushi to a test to prove his demonic nature by demanding he resurrect a deceased bishop. When Fushi is unable to do so, Cylira uses this as evidence to seize Fushi and his companions. His actions lead to Fushi being sealed in an iron prison that is filled with molten metal, a method recorded in the church's own scripture, which frames the event as a holy victory over a great evil.

The character development for Cylira is limited, as he serves a clear function as an obstacle for Fushi and Prince Bon to overcome. He does not undergo a significant personal transformation but instead remains a consistent representation of institutional corruption and religious hypocrisy. His arc concludes when his own hubris is turned against him, leading to the fall of the corrupt upper echelon of the Church of Bennett. Regarding notable abilities, Cylira possesses no supernatural or combat skills. His power is derived entirely from his political station, his skill for manipulation, his control over the church's followers, and his ability to wield religious doctrine as a weapon against his enemies.