My Ex Best Friends Are My Step Brothers

Kang Yn . A 25 year old lady whose parents left her in this world alone when she was young and also get betrayed by her best friends. Later got adopted my her aunt but doesn't stay with her. After struggling a lot since childhood at last she be become successful and find her happiness . But how long will that happiness last . What will happen when her aunt get married to her ex Best friends dad ? What will happen when she have to stay under the same roof with them ? Will they get along ?