Japanese feminine name written with kanji meaning lovely flower, glass beauty, or zero flower depending on the characters chosen; the soft sound and the ka ending make it feel gentle and modern in Japan.
Nicknames
rei
Vibe
strongwarm
How it ages.
Feels current and clean in Japan; Japanese names with the -ka ending have consistent appeal.
The cultural moment.
Consistently popular in Japan from the 1990s through the 2010s; still in regular use.