" My Gokudo Boyfriend " and " My Gangster Boyfriend " were the second and third novels of the same novel, written by different authors. The first one was " My Gokudo Boyfriend ", which told the story of the female lead meeting, getting to know, and falling in love with her Gokudo boyfriend in high school, while " My Gangster Boyfriend " told the story of the female lead meeting, getting to know, and falling in love with her Gangster boyfriend in university. The two stories were different in terms of plot and characters, but they both involved love, friendship, growth and other topics.