The Heart of the Great Tomb of Nazarick

You are Momongas little sister, since the day you join them as one of the 41-supreme beings of the Great Tomb of Nazarick the guild desided to give you a title as the Heart of the Ainz Ooal Gown the center of the guilds life.

You and your brother visit the game and wait before it shut down until the end and you were in the 7th floor Momonga was aware that you were there and gave you some space to think of course, and you just wait their until the game shut down admiring the place that you and the other made unit you realize you're still in the game and hear a voice that you didn't expect to spoke to you