A Monstrous Being Came for My Life from the Start. Sorry, I'm Even More Monstrous!

[One-Punch Kills] [A Hilarious, Ruthless Badass] [Bureau 749] [Get Stronger by Eating and Drinking] Gu Yun transmigrates to a world where the supernatural is resurging and receives a death email from the start. Everyone who received one before him died. He’s the fourth. He’s panicking. What should he do? Waiting for an answer online. Hurry! Luckily, the Glutton System awakens. You are what you eat! “Devour a chibi peachwood sword: Attack +1!” “Devour black jade: Defense +10!” “Devour century-old lightning-struck wood: Attack +100, Lightning Attribute +10!” Before the supernatural beings show up, Gu Yun stuffs himself, and his strength skyrockets. After they arrive, he’s even more supernatural than they are, pinning them down and beating them to a pulp! The supernatural beings are baffled. Which one of us is supposed to be the supernatural one here? And after Gu Yun kills them, he discovers that the supernatural beings are edible too???