[Courtyard House] + [System] + [Refreshing Novel]

Traversing the courtyard house, you'll obtain the 'Mysterious Shop' system. Not only are the system's goods cheap and inexpensive, but you can also earn mysterious rewards by accumulating purchases.

Life is so wonderful, what else can Cao Shuang say but enjoy it? Oh, right, Aunt Huairu, come again tomorrow night!