SI-VIS: The Sound of Heroes Episode 24: Grand Finale of the Beginning

The episode opens with Apollo isolated, his glowing sword a symbol of his singular, unyielding resolve. He floats above the Si-Vis idols, who question his purpose, especially after he saved Kyoya from Kokytos. Apollo defiantly declares, "Now, I shall prove it! My will is not to be trifled with!" He states his intent to save Xenos and destroy the idols if they cannot achieve his singular goal, announcing this as a test of wills.

In a dimly lit control room, staff members observe Apollo's unwavering struggle, despite the disappearance of Miriam. Apollo then undergoes a powerful transformation, enveloped in a swirling, starry aura as he reiterates his resolve, "I will destroy you all! And save Xenos alone!" The idols, for their part, gather on a grand, magically constructed stage, prepared for the '24th Live Beginning Grand Finale', with a digital countdown appearing before them. Kyoya tells Apollo, "Let's decide who is worthy of protecting the two stars!" as the world watches.

The performance erupts with June's playful, confident singing, followed by Seirene's determined declaration to remember the forgotten. Sojiro and Cryos demonstrate their powers against Apollo's fierce attacks, blocking and dodging with agile precision. Nagi and Seirene sing together, their voices intertwining with emotional intensity, declaring "Until forever" amidst shimmering golden light. Their combined melody creates a powerful, magical display of unity, directly countering Apollo's destructive intent.

Sojiro directly confronts Apollo, running with golden energy and deflecting Apollo's sword. He declares his intent to "throw" his feelings for Yosuke at Apollo, stating that "Yosuke would do that!" His golden fist clashes directly with Apollo's glowing sword, sending Apollo flying backward. Sojiro shouts with unwavering determination, embodying the raw, direct power of emotional conviction.

The idols, now a unified force, overwhelm Apollo with their combined song and energy. Kyoya, June, Cryos, Sojiro, Seirene, and Nagi stand together, celebrating their initial success. In the control room, the staff witness the merging of two ideological graphs, declaring, "The two idea graphs are fusing together!" Apollo looks surprised and disturbed by this power, which connects the entire world, as the staff realize the idols are weaving a bridge not just between people, but between worlds.

Defeated, Apollo descends gracefully, enveloped in golden light, embarking on a cosmic journey of introspection. He floats through a tunnel of swirling stars, his face reflecting surprise and a new understanding. He acknowledges the immense power the idols have unleashed, a power to create ideas, admitting, "I never thought of that." He finally recognizes Orpheus's gamble, and the mountain, once marked by Apollo's blue light, is now bathed in golden light, symbolizing restoration.

Kyoya offers his hand to a defeated Orpheus, who, still in the guise of Apollo, questions why Kyoya doesn't seek vengeance. Kyoya insists their aim is not destruction, but connection, stating, "What we were aiming for was not destruction." He then experiences a profound emotional moment, shedding tears of joy as Yosuke appears, praising him with a simple, "Well done." Their reunion is brief, however, as Kyoya learns of a new catastrophic threat: the Xenos flagship, uncontrolled, is falling towards Earth, transforming relief into global peril.

In the control room, panic ensues over the falling Xenos flagship, but a confident staff member asserts that "Apollo will save us! He promised." Apollo gently touches Kyoya's ear, asking him to "save our people," burdened by Apollo's past actions, and accepts the deal for the future of Xenos. Meanwhile, Samel emerges, revealing his own hidden power and a mischievous plan to destroy the ship without harming Earth, but only if Apollo joins him. Their reluctant alliance is sealed by Apollo's promise to never let Samel be alone again, even in death, a heavy exchange.

With a determined shout, Apollo unleashes a powerful blue energy beam, striking the Xenos flagship and causing it to explode in space, scattering fragments harmlessly. He then fades away in a bright blue glow, calm and serene, his mission fulfilled. Samel, surrounded by purple energy and leaves, also fades, expressing a serene acceptance of his fate, hoping the Earthlings and Xenos will "bloom again." He makes a final wish for their happy smiles to "laugh at my foolish self."

With the immediate threat gone, the world begins a slow recovery, though a staff member notes, "it's still only about 0.3% of the world's recovery." Harmonia Entertainment faces a difficult decision, splitting Si-Vis into an "Earth Tour" and a "Xenos Tour." June and Seirene sit during sunset, discussing their new, separate paths, as June will join Seirene and Cryos on the Xenos Tour. June attempts to comfort a visibly sad Seirene, reminding her that there is nothing that doesn't change, and their connection endures despite the new form of Si-Vis.

At a graveyard, June, Cryos, and Nagi contemplate their past and future, with Cryos promising to build a tombstone for Lykos upon her return. Nagi playfully teases Cryos, asserting her place on the "Earth team" and their unwavering bond. The episode closes with a long montage of photos on Kyoya's phone, showing him and his friends, Soji, June, Cryos, Seirene, and Nagi, in various happy moments. This provides a poignant reminder of the bonds forged through their trials, suggesting that even as their paths diverge, their shared experiences endure.