Transmigrated to the Seventies, the Invisible Side Character Gets Rich with Ten-Pulls

[Period setting + not a wish-fulfillment story + everyday family life + sweet romance + System] The moment she woke up, Ruan Ran had become Ruan Ranran, with twelve years shaved off her age: she was now a beautiful eighteen-year-old, the apple of her whole family's eye.

Transmigrating into a book was no reason to panic. Wait, you're saying I'm not the heroine, just an insignificant supporting character at the edge of the story?

Being a supporting character would be bad enough, but now my family has to help someone else shine, too, while obsessively loving a male supporting character who barely appears in the book?

No! Absolutely not! This will never do!

Male supporting characters, stay away from me!

Hero and heroine, I'll keep my distance!

But this quiet, just-as-invisible male character number whatever seems right up my alley!

Ruan Ranran, who had turned thirty without dating or getting married in her previous life, takes the initiative!

Hey! Want to get married?

Life is short, so enjoy it while you can~