Ryotaro Nougami, a youth burdened by misfortune, discovers an unusual train pass. This discovery unleashes a potent demon within him, thrusting him into an unforeseen destiny. He is unexpectedly transformed into Den-O, a hero tasked with ba…

As Ryotaro delved deeper into his role as Den-O, the weight of his responsibility to safeguard the timestream grew heavier. He wrestled with the challenge of placating Tetsuo, knowing that the impending threat of the Bat Imagin loomed over …

With a swift, decisive movement, Momotaros took possession of Ryotaro’s form, an act performed without a word of consent. The consequence of this intrusion found him unexpectedly bound to the service of a minor criminal, one burdened by fin…

A simmering resentment toward Momotaros for exploiting his form for financial gain spurred Ryotaro to a resolute decision: he would assist Yamagoshi without recourse to Imagin summoning.

A sophisticated and deceitful Imagin seized control of Ryotaro’s body, infuriating Momotaros as he struggled to reassert his own will within the chaotic Singularity Point.

Urataros proved a constant source of disruption, compelling Ryotaro to confront a difficult choice: whether to retain the deceitful Imagin in their presence while he and Hana attempted to ascertain the identity of its master.

Momotaros endeavors to curb Urataros’s penchant for disruption concerning Ryotaro, while Ryotaro’s presence ignites the envy of a girl's companion, culminating in a sharp and decisive clash.

Ryotaro and his sister, Airi, both dedicate themselves to mending the fractured relationship of the separated couple, their efforts unfolding as Den-O struggles to unravel the enigma behind the Imagin's assaults.

Ryotaro and Hana confronted two martial artists consumed by Imagin. One sought only to eliminate rivals, while the other relentlessly tested its power against any worthy opponent.

Ryotaro seeks to unravel the truth surrounding the karate champion, a vessel inhabited by the Rhino Imagin. Meanwhile, Hana grapples with understanding the Bear Imagin, attempting to discern its true desires.

Ryotaro finds himself appointed to protect a beloved idol who has unexpectedly become the target of both envious schemes and a dangerous Imagin.

The revelation that Kasumi’s father was the holder of the Imagin contract spurred Ryotaro into action. He sought to understand the connection, all the while battling Kintaros's persistent and obstinate attempts to resolve the escalating cri…

A sudden and terrible possession takes Ryotaro, as an malevolent spirit usurps control. The other Imagin are cast aside, and the spirit resolves conflicts with brutal, destructive force.

Ryutaros persists in hindering the other Imagin from maintaining control of Ryotaro’s body, compelling them to act in order to reclaim their partner.

Within the steamy confines of a bathhouse, Ryotaro finds himself the unwilling captive of a fledgling criminal, the humid air thick with a growing sense of unease. Simultaneously, a disturbance stirs in the water – an aquatic Imagin is loos…

Held captive by the bathhouse owner, Ryotaro grappled with the enigma of his connection to the man who had once been his superior, all while striving to dissuade the owner from pursuing his own inscrutable course of action.

Driven by concern for Den-O’s well-being, Ryotaro and Hana resolved to suppress the Imagin that had taken hold of him. As Ryotaro navigated this difficult situation, he unexpectedly encountered a former classmate, a meeting steeped in wistf…

Following his encounter with the enigmatic Past Man, Ryotaro resolved to remain in the bygone era. Driven by a yearning to uncover his true identity, he embraced the perilous prospect, undeterred by the potential danger to himself.

A figure coalesced before Ryotaro – a younger version of himself, Yuto Sakurai. His past self’s expression was grave, a silent plea etched on his features: a warning against recklessness in the pursuit of his goals. Just then, a violent Ima…

As the Jelly Imagin wreaked havoc, Yuto turned to Ryotaro, pressing him on the weight of his responsibility as Den-O. They fought side-by-side, battling the creature's disruptive influence.

A shadow of envy fell upon Ryutaro as he witnessed Yuto's closeness to Airi. Consumed by this resentment, he resolved on a course of action, a desperate attempt to dismantle Yuto's standing.

The conflict between Den-O and Zeronos raged on, a relentless exchange of attacks. Once more, Hana moved to intervene.

A peculiar Imagin boarded the DenLiner, maneuvering past the others with a possessive air, intent on securing attention and safeguarding his vulnerable newborn.

Following Ryotaro’s arrest during his attempt to return Sieg to his host, Hana endeavors to instruct the wayward Imagin in the meaning of true princely responsibility.

Despite the escalating urgency of the situation, Ryotaro persists in his efforts to earn Yuto's trust. He is pulled inexorably toward a critical point.

Ryotaro persists in aiding the Zeronos of the present, striving to safeguard a contract holder from the encroaching Spider Imagin, all the while Yuto’s future self relentlessly pulls him toward another era.

Two individuals manipulated by a shadowy orchestrator employ a pair of criminals in a dual scheme: to strike at the present and ensnare Ryotaro in a carefully laid trap.

The victory over Gaoh cast a shadow on Ryotaro’s Den-O transformations. The strain of the preceding battle had taken its toll, and three of his Imagin began to weaken, their forms flickering as if fading from existence.

To better harness the potential of Climax Form, Ryotaro initiates a challenge within a haunted house, hoping to foster harmonious collaboration among his Imagin.

Deneb sought out Ryotaro, his purpose urgent: he needed Ryotaro to become his Imagin, a desperate measure to forestall Yuto from unleashing his final Zeronos Card.

With Yuto absent, a former admirer of Airi reappears, seeking to rekindle a lost affection. This unexpected development stirs responses from both Yuto’s past and those who knew him then, including Ryutaro.

The struggle against the Anthopper Imagin weighs heavily on Den-O, prompting Yuto to consider the ultimate sacrifice. He wrestles with the necessity of the final Zeronos card, acutely aware of the irreversible consequences its use would ent…

The DenLiner crew encountered an oddity linked to the vanished future, when Hana inexplicably shifted into the form of a young girl.

Ryotaro strives to unravel the enigma of the itinerant pianist, seeking to discern the nature of his deepest desire before the pianist's Imagin can fulfill it.

Knowing the fate that befalls those forgotten, Ryotaro is consumed by a dread for Yuto’s future. He resolves to cultivate strength sufficient not only to shield him, but to safeguard time itself.

Ryotaro’s apprehension regarding Yuto deepened as the transformation into Zeronos loomed. With the future line disrupting their synchronization, he and the Imagin sought a means for Yuto to transform in the past.

A sense of unease settled over Ryutaro as his boss appeared for a progress check, the moment a sharp contrast to the simmering resentment within him. He was still wrestling with the bitter disappointment of his pursuit of Airi, a rivalry wi…

As the DenLiner wreaked havoc across the timeline, the crew found themselves in a desperate race against time to safeguard the trains. Simultaneously, they grappled with the complex emotional fallout of Ryutaro’s manipulation by Kai.

As Ryotaro grappled with discerning the underlying intent behind Yuto’s actions, both those unfolding now and those that had transpired before, Kai resolved to test a course of action: to erase Zeronos from the past.

The world had shifted irrevocably since Yuto’s disappearance, and Ryotaro wrestled with the daunting task of restoring him, all while navigating the treacherous currents of Kai's influence.

The absence of Yuto had left Deneb reeling, and he now strained to forge connections, desperate to prevent his partner from fading away with each invocation of his Zeronos cards.

Learning that the woman who held the contract desired Yuto specifically, Deneb persisted in his efforts to create moments of significance, hoping to foster genuine, enduring memories for his partner.

The understanding dawned on Ryotaro: Kai's downfall might signify the Imagin's end. A resolve hardened within him, and he began a determined effort to demonstrate his self-sufficiency, to prove he could stand alone in battle.

Ryotaro’s persistent refusal of the Imagin's assistance, born of a fear of severance, prompts Momotaros to act independently. Meanwhile, the others attend to the stowaway Imagin within the King Terminal.

Ryotaro seeks a means of returning to the day his sister lost her memory. He believes that revisiting that moment might finally unveil the complete truth surrounding her condition and the fate of her fiancé, Sakurai.

The startling truth of that day, the day Sakurai vanished with Airi’s memories, forces Ryotaro to unravel its connection to his own fractured past. As the nature of the key to the Junction Point is revealed, he must struggle to piece togeth…

As Kai initiates a comprehensive assault aimed at neutralizing Airi, Ryotaro and Yuuto both strive to intervene. Meanwhile, an Imagin resolves to assist, dedicated to safeguarding the integrity of both past and future.

Racing against time to prevent Kai from harming Airi, Urataros commandeers the DenLiner, aided by several other Imagin. He deposits Ryotaro precisely as the truth of his forgotten past begins to surface.

Ryotaro returns to the present, determined to face Kai and bring a definitive end to his reign of terror. The cost, however, may be the annihilation of all Imagin – including Momotaros and his allies.