After entering fight with Kyrin, staying alive the needed 2minutes and getting the message: "You have passed the test. You must go back to Kyrin by taking the portal." You are still not able to take the portal and complete the skill quest (tried drinking a potion and numerous times), so getting battleship skill currently is impossible.
Whoops, I may have not properly uploaded the new script. Would you mind trying once more? Sorry about that. Edit: Confirmed fixed.