World's Richest Man: I Leaped Across Time - Chapter 34: Secrecy

Sequel of Allison, taking place about 17 years after the original series.

What will you do when the gods turn Earth into their playground? Run, hide, and hope for the best? What if it isn’t an option? What if you’re the thing they want to play with? What if they want you to play for their entertainment?That is what the humans had to go through when the gods forced an awakening upon them. Pick classes, slay monsters, and survive being the god’s pet. Surviving an apocalypse can be fun, but a divine apocalypse? It will be fun… but only for the gods. For the rest, it is a test for survival.Maybe not for everyone. What if someone views it as an opportunity to take revenge on everyone who had betrayed him? What if someone doesn’t care about being used by the gods as long as he can use them for his revenge?That’s what Kang YuWon sets out to achieve once calamity strikes. Revenge on everyone, including his family, and even the gods, if they ever cross paths.

Thirty-three classmates hold a reunion after graduating. Tensions soar and old friendships are tested, as a strange turn of events lead them to follow the path of the ancient gods.

This novel is also known as The Demons Beside Me

Chen Zhao can summon demons and see Death.

“Beelzebub, use your Gluttony ability to treat this patient’s anorexia.”

“Raymond, this old man wants to regain his manly function. You know what I mean.”

- Description from Novelupdates