OVA
Description
Puppis Lacaille is a minor supporting character in the animated adaptation of Saint Seiya: The Lost Canvas, set during the 18th century Holy War between Athena's Saints and Hades' forces. He is a Silver Saint who serves under Capricorn El Cid, one of the twelve Gold Saints of the Sanctuary.

Lacaille comes from a humble background. He is the son of a highly skilled swordsmith who lives in a town in the desert. Unlike his father, Lacaille shows no talent for sword-making, and his father grows increasingly frustrated with him, frequently scolding him and sending him on errands. During one such errand, Lacaille encounters a mysterious traveler who astonishes him by sharpening a blade simply by passing his hand over it. When a group of thugs harass them, the stranger, who introduces himself as El Cid, easily drives them off. Lacaille's father initially mistakes El Cid for a troublemaker, but soon recognizes him as a sincere and genuine warrior. Hoping that El Cid's influence will make his son more serious, the father entrusts Lacaille with the task of guiding El Cid through the nearby city of Catalania.

Catalania has mysteriously appeared overnight and is hosting a tournament that attracts warriors from far and wide. Lacaille accompanies El Cid and watches the tournament unfold, only to discover that the entire city is an illusion constructed by the dream god Phobetor, who had lent his power to a participant named Felser, an old friend of El Cid. The god had also resurrected their mutual friend Mine. El Cid ultimately defeats Phobetor, who intended to devour all the people gathered in the city by absorbing their passion. Inspired by El Cid's strength and character, Lacaille decides to follow him to the Sanctuary and become a Saint himself. Along with two other young aspirants, Tsubaki of Vela and Rusk of Compass, he eventually earns a Cloth and begins accompanying El Cid on missions.

Lacaille's personality evolves from that of an aimless and somewhat careless youth into a devoted and earnest Saint. Before meeting El Cid, he is portrayed as lacking direction and talent, much to his father's disappointment. After witnessing El Cid's skill, honor, and sincerity, Lacaille finds a purpose and dedicates himself to the path of a warrior. He is fiercely loyal to his master and deeply attached to his fellow disciples. This loyalty is shown when he and his companions repeatedly beg El Cid to allow them to fight by his side, and when they disobey his direct orders rather than let him face danger alone. Their devotion ultimately proves fatal.

In the anime, Lacaille's role is expanded compared to the original manga. Before the Holy War begins, he, Tsubaki, and Rusk watch a fellow aspirant named Paquia win the final match to earn his Cloth, and they congratulate him, believing he will soon become El Cid's right-hand man. However, Paquia flees that night, terrified of dying in the upcoming war. El Cid intercepts him and prepares to execute him for desertion. The trio arrives and pleads with their master, but they cannot change his mind. It is only through the intervention of Sagittarius Sisyphus, who grants Paquia permission to leave, that the deserter is spared, and El Cid withdraws in silence.

Later, Lacaille and his companions are forbidden from accompanying El Cid to the battlefield, as their master wishes to protect them from the dangers of the war. Sisyphus explains El Cid's reasoning, but the trio, unable to stand idly by, disobeys and rushes to their master's side at the barrier of dreams, where El Cid and Pegasus Tenma are locked in battle against the god Oneiros. The three disciples launch a combined attack called Hauling Argo, in which Rusk and Lacaille send forth gusts of wind or torrents of water that Tsubaki concentrates into a single devastating strike. The technique, named after the mythical ship Argo, reflects the constellations the trio represents, as Puppis, Vela, and Pyxis are all parts of the ancient ship constellation. Despite their courage, the attack has no effect on a god, and Oneiros kills all three of them with a burst of energy. Their master can only watch in rage and grief as his loyal students die before him.

While Lacaille is a short-lived character, his story serves to highlight the bonds between El Cid and his disciples and the cost of the Holy War. His background as a swordsmith's son who finds his calling through El Cid's example gives him a clear motivation for becoming a Saint, and his loyalty, courage, and willingness to sacrifice himself define his brief but meaningful presence in the series.