Mizuki's mental model shakes her head side to side as she replies back to Savannah, the other destroyer apparently doesn't understand what she meant by her example, "Savannah... you misunderstood.... According to the Japanese custom... This robe or Kimono as they are also known as you said... are SUPPOSED TO BE worn without underwear...." She lets the information sink in to the other warships before continuing, "Yes. Apparently, wearing underwear under the kimono is the thing that would be seen as an insult to them...."