Mafia Luerd Mungkorn: Hong (2015)

These two dramas have similar synopsis, even the names are similar:

both include 'Mungkorn' and 'Hong' (Swan)

basically girl gets a position as a leader of a mafia gang + has a man by her side to protect her/originally came to her for revenge.:)

Rhino sign. Similar in background, different story of another gang under The Dragon Blood Association