Comprehensive Comics: Do You Need to Study at the Beginning?

Travel through the world of jobless reincarnation and become the twin brother of Rudeus? At the beginning, I am required to learn more than 900 million magic books and more than 300 million martial arts books? But it doesn't matter, I have a plug-in! What? The plug-in is gone? It doesn't matter, I still have a brain! But I found something wrong with this maid Lilia. Where is my sister Aisha? This is not normal! PS: There is no romance, gifting girls, or avatar sex in this book. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.