"The Television programme centres around Leo, the ex-boyfriend of businessman Roman Pretty's middle daughter Nikki, who still works and lives with the family. Nikki's new boyfriend, Seb, has a shady past, which Leo tries to reveal to the Pretty family but usually ends up making himself look a fool. His best mate Jase is married to the eldest sister, Jenny, and is constantly attempting to get away from her and their new-born daughter.
"After a complaint from Roman in a restaurant, Japanese chef Mr. Hokkasawa loses his job. He had sworn that he would never use his sword again but later takes the job of the Pretty family gardener, in a plot to kill Roman. however, he falls for Roman's youngest daughter Kelly. All the characters live in a large house owned by Roman, which is where the majority of the story is set."
https://en.wikipedia.org/wiki/Roman%27s_Empire
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https://www.youtube.com/watch?v=3gN-9kOVyo0