Thanks for the invitation! I am in hell and have just become a demon king.

Once he traveled through the world of the Devil High School, and after a thousand years in the world of the Devil High School, when Chen Eliog became the fifth demon lord of the underworld, he received an invitation from a dimensional chat skirt.
Out of boredom, Chen Eliog chose [Accept].
Cang Yue: Welcome newcomers! I am the strongest fighter in the group, let me know!
Esdeath: The above person is talking nonsense! I am the strongest fighter in the whole skirt group, let me know!
Yukinoshita Yukino: Hello, newcomer! As an ordinary person, I am trembling in fear between two big guys!
Shinomiya Kaguya: +1!
"........."
Chen Eliog: "Thank you for the invitation! I am in hell and have just become a demon king. I have official duties to attend to and will hide for the time being."