God's Chosen Shirou Emiya Descends Upon Chaldea

My name is Shirou Emiya, and I've been away from Earth for who knows how many years. One winter, when I was seventeen, I woke up in a completely unfamiliar place, probably because I'd been sleeping in a warehouse. But with the help of a friendly wizard and the culprit who transported me to another world, I became a wizard myself. Now, I'm a chosen one of the Goddesses of Magic, with an average career of six hundred years, and I'm still seven or eight hundred years away from retirement. But one day, I found myself back in the mansion my father left me. —Humanity burned? Saving the world again, huh? It's a job I do all the time. My name is Shirou Emiya, and my life's dream is to be a righteous companion, to end the tears of the innocent. This book is also known as "Shirou Emiya, the Returning Max-Level Mage from D&D" and "The Protagonist's Dice Are So Powerful I Can't Continue This Book" (this book features the sole female protagonist, Altria Pendragon). References: "ADND2e Spell Compendium 1.0," "DND3r Spell Compendium 1.16," and "DND5e Spell Compendium 1.51."