I Don't Want to Be a Stepping Stone: A Supporting Character's Guide to Survival

After a car accident, Yu transmigrated to another world and arrived in an empty space.

"At last, you've come, child of man."

"Get to the point, deity."

"Straight to the point, just as your character would suggest. You're about to be sent to a world, and you'll go there in your original body. Of course, we'll give you some help."

"What kind of help? Magic? Swordsmanship? Summoning?"

"Magic. You need magic, and it has to be magic. You'll be sent to the world I created as a supporting character, to fill in for a character who is missing."