The Passer-By Supporting Character Just Wants to Live

"Young man, you are in luck!" Boom! "No!" Due to force majeure, the boy was reincarnated into a different world, and it was still a magical world with the background of a harem novel he had read in his previous life. He was still a supporting character without a name. Thinking of the troubles that would happen around the "protagonist" in the future, the supporting character got cold all over. So in order to "live", the supporting character began his campus life to remove the death flag.