I Transmigrated to the 1970s With a Spatial System and Married an Army Officer

Republican-Era Setting, Following the Army, Beachcombing, a Lucky Female Lead, Space, Food, and Sweet Romance

Looking for books like "Transmigrated into a Book as a Female Supporting Character, She Gets Pulled Close by the Toughest Soldier in the Army". I want a female lead stationed with the military on an island or by the sea, who often goes beachcombing and cooks delicious food. A sweet romance where she's incredibly lucky and often finds huge hauls!