Retired peacekeeping soldier Jiang Han works anonymously in the city delivering food, but is brutally humiliated by his money-loving girlfriend breaking up on Valentine's Day. The "all-things-devouring system" awakens under extreme anger. This system has a strange style. Others rely on hard training to practice, but he relies on "eating": eating the "taunt" of his ex-girlfriend to obtain [Iron Will]; eating the "luck" of a rich second generation to let him go out to pick up money; helping a beautiful archaeologist bury ancient corpses, swallowing "corpse energy" to turn into "invulnerable to all poisons"; helping the wronged souls fulfill their wishes, swallowing "obsession" to obtain [god-level fighting skills].
As Jiang Han continued to devour, he discovered that the ancient martial arts family and the supernatural world were hidden under the city. While delivering takeaways, he pretended to be a pig and ate a tiger, trampling on all those who looked down on him, and finally revealed the mystery of his life experience, devouring all the sources of darkness in the city, and becoming the most powerful legend in the city.
