Erwin Smith is the Commander of the Scouting Legion, known for his foresight, intelligence, and drive. His ultimate goal is for humanity to return to its former glory and would sacrifice any number of his men for the sake of mankind as a whole.

Yuno was left, along with Asta, in front of a church in a village called Hage when he was an infant. He grew up at the church and spends most of his day with Asta. Sometime later, a thug tries to take his necklace away from him and sell it for the money. Fortunately, Asta steps in and tries to take it back. At the end, the thug decided to leave without the necklace after Asta keep charging at him. Since then, Yuno stopped crying and decides to take Asta's dream to be the Magic Emperor as his own as well. (Source: Black Clover Wiki)