The Cannon Fodder's Human-Shaped Cheat

[Complete] Thank you for sticking with me! ∠※ After retiring from the Quick Transmigration department, Yan Chen gets to travel to small worlds and reclaim the Source Power. Yan Chen soon discovers that the versions of "himself" who are full of regret and unwilling to return are all the younger brothers of cannon fodder characters in the main plot. Each cannon fodder has their own tragedy, and he is a professional liability. Cannon Fodder 1: The male lead's fiancee in a story set in the past After fulfilling her role as a catalyst, she is forced to marry someone else and eventually dies from domestic abuse. Yan Chen is her frail younger brother, who dies young. Cannon Fodder 2: A minor actress in the entertainment industry Plagued by scandals and on the verge of despair, she jumps from a high-rise to end it all. Yan Chen is her autistic younger brother, who depends on her for everything. Cannon Fodder 3: The foil to a female merchant in ancient times Her reputation is ruined, her family's fortune is squandered, and she lives out her life in loneliness. Yan Chen is the younger brother her family adopted, who dies of illness on the way to take the imperial examinations. When the one dragging everyone down becomes the strongest backer of them all, the cannon fodder also start racing down the road to becoming winners in life. If they had a System, perhaps they would hear a notification the moment Yan Chen arrives: "Ding! Your cheat has arrived." [Important] - Due to an interruption in updates during serialization, World 45 (cultivation, apocalypse) wasn't written well. I don't recommend buying it all at once! - Check out my friend's completed story of the same type, Making Money Beats Courting Someone [Quick Transmigration]. It also has a male protagonist and no CP! Finally, please add my author page to your favorites, qwq. Theme: Everyone's life deserves to be respected.