Universal Pawnshop

After clicking on an email, an ordinary man from Earth finds himself transported to an exquisite ancient-looking hall.
There, he learns that he is responsible for collecting debts owed by certain well-known immortals from the Immortal Realm and that he owns this ancient-looking hall called the "Heaven and Earth Pawnshop."
The thought of being in charge of collecting debts from the deities horrifies him to the core. Although his weapon spirit begs him to stay and attempts to explain his purpose, he is internally set on leaving.
To his dismay, however, he discovers he has no choice but to comply and is in a much more hazardous situation than he initially believed as he learns more about the pawnshop and its debtors.
Yet he had no idea he was about to go on a fascinating and enigmatic odyssey...