The Wrath of Vajra

In the distant Hades shrine, the Cult of Hades abducts children and trains them into merciless assassins, birthing a prodigy named K-29. He becomes the temple's most feared weapon, wielding the legendary '17-seconds-deadly' Vajra power. This ruthless environment cements a fierce rivalry with his rival Daisuke Kurashige.

Daisuke, though gifted, lacks the full Vajra power that K-29 commands, and the two lock into a high-stakes rivalry that tests every cult rule. The growing tension fuels the theater of combat around the shrine.

K-29 defeats his fellow champions, sparing rather than destroying his rivals, a decision that unsettles the cult’s leadership. He then flees to Shaolin with his younger brother Qinquong, seeking a quieter life under a monk who urges restraint.

Prince Shiroginomiya visits Sensei Amano, prompting a grim proposal to revive the cult to sow fear again. Amano entrusts the revival to his trusted pupil, Daisuke Kurashige, who proclaims himself Vajra king and begins to manipulate the crowd.

Amano and Daisuke abduct Qinquong and force him into the fold of mind-controlled children. The news wakes K-29 from his Shaolin seclusion, and he returns with his monk’s blessing to challenge the fortress of the shrine.

An open contest is issued: if K-29 can defeat Tetsumaku Rai and Crazy Monkey, he will earn a direct confrontation with Daisuke. The stakes rise as the arena becomes the battleground for the cult’s fate.

K-29’s Vajra discipline shines as he defeats both rivals with astonishing finesse, undermining Daisuke’s attempted deception. The crowd begins to lean toward K-29 as a genuine Vajra king.

Daisuke fights with fury but cannot break K-29’s hold, and the spectacle sows doubt among observers. The crowd splits, and the theater of combat heats with impending upheaval.

In the heat of betrayal, Amano’s daughter Eko is killed while trying to protect the vulnerable children. The tragedy hardens the resolve of those aligned with K-29 and accelerates the revolt within Hades.

The climactic duel showcases the full Vajra power, as K-29 unleashes the coveted '17-second' strike to seal Daisuke’s fate. Daisuke dies, naming K-29 the true King of Vajra, a hollow victory for the cult.

The Undertaker unmasks the elder brother K-31, who had seemed to die in childhood but waited in disguise. He reveals that he saved K-29 years ago and now aligns with the light to rescue abducted children.

K-29 and K-31 join forces to rescue the abducted children and dismantle the cult’s mind-control machinery. Their alliance signals a turning point as safety returns to the temple.

The cult’s power wanes, conspirators scatter, and the recovered children are freed. The legend of Vajra shifts from weapon to memory, leaving a cautious hope for a new era beyond fear.