honestly, i'm not sure. i simply liked how the word "ripple" sounded and stuck with it. "rippuru" is just a Japanese pronunciation of my name; one day i was messing with phonemes and making japanese voicebanks talked and tried to make Azuki say my name. i liked how it sounded, and adapted it as an alias. my other names are just from characters i kin or random words that particularly stuck out to me/sounded cute <3