Simulation Plot: I Compete with the Protagonist

The introduction is weak: What should I do if I get involved in the world of Shuangwen because of a moment of injustice? The male protagonist's luck is unlucky, and he has become so bad at the beginning that even the golden finger is suppressed by him. Is I the first stepping stone for the male protagonist's rise? One of the male protagonist's harem candidates is actually my junior sister? ... ... This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.