Irresponsible Captain Tylor OVA

The shooting war is over with both the Raalgon Empire and the United Planets Space Force able to declare victory. Both sides have withdrawn their massed fleets and everything should have settled down to normal. It should come as no real surprise that it hasn't. The Raalgon Empire have taken the opportunity to secretly deploy a new weapon. Learning of this the UPSF has no choice but to send the Soyokaze on a secret mission to find out what this new weapon is. The scariest part of all, though, is that Justy Ueki Tylor has a plan.

Synopsis from Anime News Network