Why Did the Promised Protagonist Become Cannon Fodder?

Introduction: Jin Lin was originally a creature in the pond, but he transformed into a dragon when he entered another world. Zhang Jinlin mistakenly entered a different world, expecting to get a golden finger or system from the male protagonist's script to awaken a powerful person. However, he never expected to become a trash cannon fodder. In order to one day awaken the non-existent golden finger system, he went all the way to become the emperor of all races. Rough boundary division in the early stage: Oriental Human Race: Tempering the Body - Gathering Qi - Opening Veins - Condensing Yuan - Transforming Gang - Territory Realm Demon clan: Demon Infant - Demon Soldier - Demon Warrior - Demon General - Demon Commander - Demon King - Demon King Beast Tribe: Beast Cub-Beast Soldier-Beast Warrior-Beast Soul Realm-Beast King-Beast King Western Terran: Soldier-Bronze Knight-Silver Knight-Gold Knight-Dragon Knight Magic Apprentice - Magician - Magister - Grand Magister - Holy Magister