The melody for Moonlight Densetsu is based on a classic 1965 Japanese song titled Sayonara wa Dance no Ato ni (“Goodbye at the End of the Dance”).
But my heart is sincere, what can I do?
Shinjiteiru-no [I believe in it*]. This is the miracle of romance.
Note: Viz Media left “Gomen ne” and “Shinjiteiru no” untranslated based on the instructions of the original Japanese lyricist, to the confusion of everyone.