In Time Travel, I Relyed on Krypton Gold to Become an Immortal

The protagonist Lu Yi was originally a social worker. He suddenly died while working overtime and traveled to the world of mountains and seas. He awakened the krypton gold system and embarked on the road to invincibility. System: "Host, it's time to make money!" There is a great value gift package today! Lu Yi: "Die! Your value-for-money gift package only gives you two bottles of healing elixirs?"