The Stenoue is encountered in Chapter 5 where it is introduced along with the contingent of high speed frigates that relentlessly pursue the Elsior. By later encounters, the Stenoue will always be accompanied by a squadron of frigates to help chase down the Elsior. Even alone, the ship is exceedingly fast and should never be ignored along with its squad of pursuers. It should always be targeted first if it is nearing the Elsior because its offensive power is higher than a Serac class frigate. Sherry is finally defeated by Chapter 9 where she attempts to collide the exploding hull to the Elsior.