Everything Can Be Exchanged: My Exchange System Can Be Upgraded

Lin Fan originally thought that all that was left in his life was the astronomical debts from his family and cold repayment notices, but he unexpectedly awakened to a system called "Everything Can Be Redeemed." Waste? Rubbish? Even the body's organs and illusory luck, emotions, and memories can be exchanged for powerful power, rare treasures, and even lost skills as long as the system recognizes their "value"! "Ding! The host's strong unwillingness has been detected, and the emotional value has reached the standard. It can be redeemed for the [Newbie Gift Pack]!" "Ding! The abandoned alloy dagger contains weak energy and can be exchanged for [Basic Combat Skills Mastery]!" "Ding! The value of the ten-year single contract is being evaluated... Can be exchanged for [24-hour lucky halo]!" Just when Lin Fan was climbing back out of the abyss step by step with this strange exchange ability, preparing to stir up trouble, he discovered that this system seemed to be inextricably linked to the mysterious incident that changed the fate of his family ten years ago. Former enemies, unknown conspiracies, and even other system holders emerge one after another... How should Lin Fan use this ability of "everything can be exchanged" to fill holes and dig holes while dealing with various forces, finally uncovering the truth and becoming the "King of Exchange"?