After binding to the Cannon Fodder System, Zhang Yuan is tasked with playing a miserable cannon fodder character in various small worlds.
In the first world, he is a despised Bate wife in an ABO setting. The protagonist gong supposedly despises him and treats him as a toy to pass the time with, so why has the protagonist gong started bullying the little cannon fodder in a different way?
In the second world, he is a disabled dog beastman. Born with a disability that leaves him unable to hear, and not much to look at, he is shunned by his tribe. The cannon fodder should have been driven out when winter came, but the protagonist gongs force him to stay.
In the third world, he is a lowly servant in a prince's household in ancient times. He used to spend every day being beaten and scolded, with never enough to eat. Then his undergarments start disappearing with increasing frequency.