Jessie is the technical expert of Barret's Avalanche cell, providing them with the explosives used in the bombings, minor explosives used on their missions, fake IDs, and other procured items. Although she is generally confident and upbeat, she is burdened with guilt at the devastation caused by her bombs. Jessie is very close to Biggs and Wedge, and develops apparent feelings for Cloud, being very flirtatious with him and often teaming up with him on missions.