Meeting The Piano Girl

The gang was headed to Lord Death's office but when they entered they heard a piano being played. They soon found out that all this time there was a girl, given by the title of 'Piano Girl', living in a room behind Lord Death's room all along and no one, except the staff and Death himself, knew about it!
And what happens if the boys start to like the so called 'Piano Girl' ?
Will she like them back?
And what secrets lie ahead?