Even the author can't tell whether this is a male- or female-oriented story. Anyway, it's pretty bizarre.
Yang Shusheng and Shanhua are a down-on-their-luck married couple with nothing but their marriage certificate to their names.
They thought that was all life had in store for them, until they discovered that the certificate... could grant skills?!
Help a young immortal with his homework and gain [Fiery Golden Eyes].
Make a marriage pact with a demon and unlock [Debt Transfer].
Even faking an accident can earn you [Registration to Use a Causality Weapon]!
From then on, the Three Realms take a sudden turn for the bizarre.
The Immortal Realm outsources work, the Demon Realm gets into trade, and even the guardians of order are left baffled by the couple's outrageous antics.
When the ultimate boss, the "Core of Order," is about to format them, the two look at each other and smile:
"Forgot to tell you, our most powerful certificate is called 'Yang Shusheng and Shanhua: Themselves.'"