In their youth, Vander and Silco formed a strong bond over their shared dreams for Zaun's freedom and unity as one nation. Both of them were friends with Felicia, another Zaunite who they met in the mines. During a protest against Piltover on the bridge between the two cities, Silco threw a molotov cocktail at the Enforcers in an attempt to help his people. In retaliation, the Enforcers violently responded to the protesters, which resulted in the deaths of both Felicia and her partner Connol, leaving their children Vi and Powder orphaned. At some point, this action led to Vander viciously attacking Silco and attempting to drown him in a river. Due to an open gash on his left eye and the pollution in the river, this eye was contaminated and permanently disfigured. By briefly faking his death, Silco swiped Vander's dagger, stabbed him in the arm, and fled. Sometime before Ekko's arrival, Silco and Vander both mutually forgave each other for their past actions. It is unknown when this occurred, but presumably after Vi's death. It's hinted at that this happened due to the letter left in the mines, and that this is the course of events that would have followed if Silco's Main Universe counterpart had found the letter.Later on, during the Innovator’s Competition, Silco accompanies Vander at the bar, where he meets the Main Universe Ekko. Puzzled and surprised, Ekko comments on the fact that Vander had tried to drown Silco, to which a bewildered Silco replies that forgiveness is strong.Silco seems to have retained his younger personality, as he is not aggressive or cunning like his Main Universe counterpart was. He is kind towards Ekko and Vander; seen when Ekko asks about Vander’s previous attempt to kill Silco, he simply responds with how strong forgiveness can be. "Oh. Hi. I'm Silco from another universe...it's a pleasure to meet you."