"The water overflows, and the moon waxes and wanes. When it is exhausted, there may be regrets."
The name of the piano waxes and wanes, and the moon waxes and wanes.
The author's writing style and logic are useless. It all depends on his mood to fill in the gaps. There will be some OOC and some CP. Just take a look and don't worry about the bugs in the middle.
(づ￣ 3￣)づ