[melina_t]

A song for xx
An album dedicated to a loved one, but she doesn't make it obvious as to who it is dedicated to.

LOVEppears
The title confuses me..

Duty
Just as you stated, she wants her fans to know music is her duty, especially to her fans.

I am...
She shows her fans the many faces of her through her variety of music.

RAINBOW
Well, she uses a different range of songs, pop, rock, ballad. Maybe to relate to the variety in a Rainbow?

Memorial Address
Another dedication?

MY STORY
Events of her life, beginning to end.

(miss)understood
Maybe she wants to let people know she's aware of people misunderstanding her because of her previous music and perhaps lyrics.

Secret
She discreetly puts her secret in her songs?

Guilty
She's guilty about what she's done in the past or hasn't done.

NEXT LEVEL
The next step in her career, she uses new genres, rather than her typical pop, rock and ballad.

Rock'n'Roll Circus
Just as the title, an album filled with rock songs.

Love songs
Not sure what to expect, but an album filled with love for her fans?

I never really put much thought into Ayu's title's, hence my short descriptions.