Toaru Majutsu no Index - Volume 12, Chapter 5: Vaguely Passing Sunset. Hard_Way,Hard_Luck.

Amamiya Hiroto is unlucky. His life consisted of misfortune after misfortune, culminating in an unlucky death during an incident on a school boat trip, trying to save a girl he barely knew. After death, he met a god of reincarnation who requested that the hundred or so dead passengers—one of them being the girl he tried in vain to save—be reincarnated into another world.

Jun Xiaoyao was transported to a mystical world and became the divine child of a Clan of the Ancients. He came to possess an invincible background, unparalleled talents and even a check-in system, enabling him to acquire an Accomplished Sacred Body of the Ancients at the very beginning of his new life.

He acquired the Divine Elephant Overpowering Force, a six-star reward, checking in at the Old Tablet of Taiyue.

He acquired the Bones of Supremacy, a seven-star reward, checking in at his Ten Years Old Banquet.

He acquired the Cauldron of Maternal Qi of All Beings, an eight-star reward, checking in at the Bronze Mystical Hall.

He acquired the Grand Method of Freedom Melding, a ten-star reward, checking in at the Borderless Ocean.

He sat on the clouds countless years later, with his sword pointing at the heavens, saying, “I alone shall rule over the heavens and the earth. I shall become the pinnacle at the very end of the mystic path!”

- Description from MTL

Lu Zhiguang is not a cannon fodder himself, but his mission is to save the miserable cannon fodder.