As you walk in the world, you feel like you are missing something every day.
You don't know what you've lost, and you don't know where to go to retrieve these lost things. In fact, these things just went to where they should go...
Legend has it that in the land of extreme poverty, at dusk when the sun and moon exchange, a rare palace will appear in the world. The owner of the palace likes to collect all kinds of souls. If you make a covenant to give your soul to him pure and intact. In exchange, he will help you find what you lost.
This palace is called Chen An.