Captain

The Capitano is first mentioned by Victor, who states that he would prefer to serve under him rather than the Signora if he were given the choice.

Like the other Harbingers, Capitano attended Signora's funeral, where he honored her despite disapproving of her methods.

Several months before the Traveler's arrival in Sumeru and the Wine Festival in Mondstadt, the Capitano crossed paths with the Ordo Favonius expedition led by Varka. Although the Capitano's presence unsettled the knights, the Harbinger himself was well-disposed toward the Mondstadters. According to Varka, "they found themselves in the same boat as Snezhnaya," so the Capitano and the knights of the Ordo Favonius supported each other until the Harbinger received orders to head to Natlan.

Shortly after the Traveler's arrival in Natlan, Capitano battled the Pyro Archon. The First Harbinger's goal was the Pyro Godheart, which he intended to use to protect Natlan from the abyssal invasion and then hand it over to the Queen. In this battle, Capitano was defeated and abandoned his attempts to acquire the Pyro Archon's Godheart, informing the Queen of this, who accepted his decision.

During the war with the Abyss, the Captain proved himself to be a strong, courageous, and valiant warrior, something that was noted by many other warriors of Natlan.

After the Traveler and Mavuika's final battle with the abyss, Mavuika, following her decision to give her life for the peace and well-being of Natlan, departed for Ochkonatlan. The Captain prevented her, confronting the Death Mistress herself with a conflict between his curse of immortality and his desire to become one with the Lord of the Night, in order to change its laws and finally bring peace to his fallen people. Ultimately, the Death Mistress was forced to abandon her own rules, while the Captain became one with the Lord of the Night, finding long-awaited peace and freedom from the shackles of the world.

In Natlan, a monument was erected to the First Harbinger for his exploits.

Capitano is apparently a very powerful warrior. His skills impress the seasoned Tartaglia, though Childe himself claims he's not yet strong enough for his colleague to recognize his abilities, while Varka claims Capitano is so powerful he could destroy a Ruin Guardian by stabbing him in the eye with Klee's pencil.

Also, the Lesser Ruler Kusanali mentions that the powers of the three highest Harbingers are comparable to the power of gods, which indirectly points to the powers of the Captain.

Capitano is described as honest, brave, and fearless. This contrasts with the image and reputation of most other Harbingers and irritates the cynical Scaramucci, who views his righteousness as a potential danger. This doesn't prevent Capitano from enjoying a high reputation among both allies and potential enemies.

In his letter, Ordo Master Favonius Varka describes Capitano as a warrior who hides everything behind his mask, yet considers him a man of steely will, ready to challenge even the gods. After reading the letter, Djinn says that Varka has never before praised anyone as highly as he did Capitano.