The Number One agent of Global Justice, Will Du was brought on by Dr. Director to work alongside Kim when she is recruited to rescue a former weapons researcher from Duff Killigan. This was an assignment that Will particularly resents, since he sees world saving as a "professional's" job and does not appreciate an "amateur" like Kim horning in on what he feels is his jurisdiction. This caused Kim no end of grief, since she spends more time fighting with Will than with Killigan himself. However, they eventually manage to find a small amount of synergy, and in the end, are able to stop Killigan from turning the entire world into his own private golf course.