Soul Reaper of Nazarick (Rewriting)

In the final moments of Yggdrasil, Momonga and some of his guildmates decided to stay and enjoy the final moments of the game while they reunite with a member (OC), who disappeared three years ago. But when that day ended with them being transported to a New World they don't know about, And what they did next was to show the World. The Might of Ainz Ooal Gown