^There's no plural in Japanese.
So it's just ningyou
LOVE ~Destiny~ - Ai ~Unmei~
Endless sorrow - Owaranai fukou
RAINBOW - Niji
MY ALL - watashi no subete
GUILTY - Yamashii
Marionette - Marionetto
BLUE BIRD - aoi tori
HEAVEN - ten
Liar - usotsuki
rainy day - ame no hi
forgiveness - kaiyou (not sure)