Born in a struggling family from Lagaro Del Valle, Dagger grew up chronically tense and developed... aggressive tendencies. His father, Coriander, mysteriously disappeared when Dagger was twelve. Shortly after his little brother Gobi was born, who Dagger viewed as a shallow replacement. He would later become Gobi's guardian when Boa dies.
When he was young, he met Arid. Over the years they became good friends and brother-equivalents, later joining Sub17. He will later meet Thorn, an ambassador from the wealthy side of town, and they become quite close, against Arid's wishes...