User blog comment:Miss Misfits/Name in Japanese/@comment-5541357-20191120152701

While Hikari is definitely an actual Japanese name, most characters' given names are done in katana.

There are some exceptions, however. Some older characters have their give names in Kanji, such as Tsuande (綱手) or Nawaki (縄樹). Furthermore, surnames written in Kanji are more common than you'd think. The Ino-Shika-Cho families are all written out in kanji--last names such as Namikaze, Sarutobi, Shimura, and Hyuga, to name a few. :)