I Have a Sword and the Gods Pay for It

Investment makes you stronger. Lin Yuan traveled through the world of immortality and was bound to the "investment rebate" system. Give a fallen junior sister a copper coin, and you will receive a spiritual stone in return the next day; give a breath of spiritual energy to a dying person, and return the secret of eternal life. Everyone thought he was taken advantage of, until he killed all the immortals and Buddhas in the sky with a casual sword.