Robar is one of the three curators for Frontier IV colony along with Roy Jung and Chris. During the invasion of the Crossbone Vanguard, Robar assisted Roy and Chris for attempting to defend the colony with Roy's Guntank R-44, only to damage the left cannon in the process. After turning back to the museum for manual resupplying, Robar asks some of the children on-board on where the handheld weapons are stored into. In the battlefield, Robar fires the Guntank's cannon via Roy's order. During the counterattack, Roy, Arthur, and Robar are killed in the explosion struck by the Den'an Gei's Beam Saber.
Gundam F91 characters
|Earth Federation||Seabook Arno | Cecily Fairchild | Leahlee Edaberry | Birgit Pirjo | Monica Arno | Gruce Erras | Nanto Roos | Manuela Panopa | Cain Sohn | Jessica N'guro | Manu Sofu | Dina Jyok | Kaynee Hahhah | Bardo | Cosmo Eigesse | Elm | Minmi Editoh|
|Crossbone Vanguard||Iron Mask | Cecily Fairchild | Meitzer Ronah | Zabine Chareux | Dorel Ronah | Annamarie Bourget | Gillet Krueger | Theo Fairchild|
|Civilians||Reese Arno | Dwight Camry | George Azuma | Sam Ehrug | Dorothy Moore | Leslie Arno | Nadia Ronah | Bertuo Rodriquez | Migen Maujin | Leah Mariba | Kochun Hein | Arthur Jung | Roy Jung | Robar | Chris|