There is a word “Odayaka” in Japanese.
“Odayaka” means “kind, gentle, thoughtful, quiet and peaceful state of mind, … etc.”
The brand name “Dahica” was named after this word “Odayaka” because the designer wants people to feel “Odayaka feel” from the products and the brand.
The moon was designed in the middle of the logo.
It is a full moon, but we can only see it’s a half.

This a half moon expresses that “Dahica’s creations are only completed it’s a half when the designer’s work has done. It will we completed when its worn by people.”
Also, the moon indicates “o” in alphabets. “o” and dahica make “Odahica”(Old word of “Odahyaka”) as well.
When you think about the word “Odayaka”, you will see your loved ones, your hometown or something that bring you peace and joy.