旭: The rising sun, radiant and luminous. In personal names, it often symbolizes a sunny and open disposition, exuding confidence and decisiveness. The phrase "the sun rising in the east" also carries the profound meaning of being filled with hope and promise.

桦: The tree species, birch. "Birch" symbolizes the toughness akin to a tree, unyielding to wind and rain, metaphorically representing a robust physique conducive to good health.