This article, Yuko Corosaci, is property of Demakhis.

She was a human during the time of the Combine take over. Working with a rebel group bent on defeating the Combine she is a Special Operations soldier in the rebel group.

Living in Jericho, she grew up in without Combine oppression. During the initial assault she was fascinated by the Combine Technology thinking humans had the best Technology was a huge oversight, she thought.