Cross Val Vol Yelvori is Maru's younger twin brother and the Simurians' dispatch officer on Earth. Cold, cynical, and deeply resentful of humanity, Cross's hostility stems from a lifetime of watching his people oppressed and exiled by the Deskunte tribe. He sees humanity's relative stability as an injustice and initially advocates for taking Earth by force. Despite his stance, his time on Earth — particularly his conversations with a terminally ill Yuka — slowly erodes his cynicism. When he steps in to actively deescalate a tense confrontation, he is shot by the panicking sorcerer Yakumaru, ironically triggering the very crisis his change of heart was meant to prevent.
Cross's arc is the series' most understated transformation. He does not become warm; he becomes less cold. He does not forgive humanity; he stops punishing it preemptively. The chapters following his shooting trace his recovery not in dramatic declarations but in small, precise gestures: attending Dura's memorial without being asked, showing up to the Ritual without challenging its premise. His final appearance — watching the sunset over Tokyo with Maru, saying nothing — is among the most earned silences in the series. Cross began as the argument against everything Maru believed. By the end, he is its most quietly convincing proof.