Always Transmigrating into a Female Lead's Relative [Quick Transmigration]

[Cringe-worthy old work, read at your own risk] Reader's guide: This silly author is writing quick transmigration for the first time, and hadn't read this kind of story before. The writing is really bad, so I strongly recommend you don't read it. That way, we can still be friends! Si Nan, whose life had been full of misfortune, got a System. He thought it would improve his life. In reality, it was completely useless! After transmigrating through n worlds, Si Nan was furious. This damn System, these ridiculous missions! Could someone tell him why he always transmigrated as a relative of the female lead? And could the male lead standing next to her stop chasing him around all day? Male lead, go back to your original partner and get some self-respect, okay? Every time, he felt guilty as if he had stolen his own relative's love interest... System: They're pursuing you already. Hurry up and win them over! Si Nan: This feeling of being forced to raise someone's affection for me is a thrill like no other! System: Enough chatter. Choose the male lead's attributes. Si Nan: This feeling of digging my own grave is not fun at all! Theme: Theme to be added