Is she like a vocaloid or something?
She is an UTAULOID, which is a voicebank for a software called UTAU. UTAU is similar to VOCALOID but it's a freeware and allows users to create and use their own voicebanks/UTAULOIDs.
She looks so adorable!!!!
wowow cutie ;w;;
You drew Amaterasu really cute *u*