Magic/ Isekai/ Reincarnated

The Tower's peace was shattered by the Outer invaders and the Great War of Gods and Demons, leading to the extinction of humanity.In the midst of it all, the only survivor, Jeong Sewoon,' embarks on a mission to undo everything.He discovers the Demon

Read manhwa I'm Leaving Without Saving The Terminally Ill Villain

I was reincarnated as a grimoire containing all the magical knowledge of another world.Anyone who reads me can become a legendary archmage.Please, just read me... But no one is willing to open my pages.