I married my sister's ex-fiancé on a whim. Turns out he's the city's most mysterious tycoon.

When her sister's fiancé falls on hard times, his proposal is coldly rejected by the family. Su Tian makes a bold move-marrying him to escape her loveless home.
Her dashing new husband instantly heals her heart. What she thought was a marriage of convenience turns into constant affection, with him glued to her side.
Despite her mother and sister's gossip about future hardships, Su Tian ignores the chatter. She proudly wears her "cheap" wedding ring, living life to the fullest.
Then one day, she spots the most mysterious, prestigious man in Jinghai City wearing an identical ring-a billion-dollar limited edition!
That same day, a fleet of Rolls-Royces pulls up at their modest home.

[@ytto90T]

Good ending❤