rain
This means rain.
One; one
It's short for angle, which means angel.
s
This is short for star.
Only Aishan is a girl's name, "rain, angel, star", which are all symbols of romance and beauty. Rainans not only conforms to the pronunciation rules of English, but also is concise and clear. I hope I like it!
Remember, when reading, R is preceded by heavy syllables and followed by light syllables.
Raines
When reading continuously, it can be pronounced as "Ryan's Silk".