My Meituan Can Place Orders!

Lu Chen lives in a world where everyone has to participate in the secret dungeon. In this world, everyone must participate in the secret dungeon when they reach the age of 18. After passing it, you can participate anytime and anywhere, and it is no longer mandatory. "Huh?" "What's going on? Why does Meituan have an extra option?" "S A-level killer ghost! A-level chainsaw ghost? "My team can actually order fierce ghosts!" "Isn't that why I'm invincible?" "Haha, I can go sideways in the weird dungeon. I want the boss ghost king to be my little brother!"