The Cornhuskers outhit Penn State 8-2.
Grodin marks the Nittany Lions' second addition during the offseason.
Pera coached under Mike Rhoades for two years.
Home runs from Michela Barbanente and Meagan Ricks set the standard as the Nittany Lions ran away with it early.
Martin was a two-time All-American with the Gators.
Parnham will travel out west to the Denver Outlaws.