Azur Lane: A Battleship Missing from the Old History

In another parallel world, peace had finally come. Still, at the request of the *visitors, several of the world's major military powers jointly funded the construction of five warships as symbols of peace. One of them, the second sister, Admiral von Karl, sank to the bottom of the sea due to a series of blunders by her crew (or perhaps not). (Inspired by the Mutsu.) Von Karl opened her eyes, only to see a girl named Xun Bai, barely 1.69 meters tall, standing before her and claiming to be her Commander. Von Karl could hardly describe how she felt at that moment.

Xun Bai: Karl! I'm hungry! I want German sausage and bread!

Von Karl: Commander... Never mind. -_-|| I'll go make some.

Xun Bai: I'm so sleepy. I don't want to go to those command classes. I just want to sleep.

Von Karl: Commander, it's time to get up. (Checks the time.) We're going to be late, aren't we? Then I have no choice... (She hoists the Commander onto her back, grabs the breakfast she prepared, and runs toward the school.)

(Half-invincible story. The protagonist will get stronger later on, and there's a little yuri. I'm a new author, so the earlier chapters may not be very well written. Please bear with me. The main story follows.)