BL manhwa refers to Boys' Love comics or graphic novels that come from South Korea and feature romantic or intimate relationships between male characters.
Well, a rut bl manhwa usually features male-male romantic relationships and explores various themes related to love and emotions. It's a popular genre in the world of manga.
One popular theme is the 'opposites attract' idea. For example, the girl could be really shy and studious while the boy is outgoing and more into sports. When they meet, they initially clash but then find that they balance each other out. Another theme is the 'first love' experience. It's about the innocence and excitement of falling in love for the first time within the context of the 'Girl Meets World' world. They meet, and everything is new and magical for them.
One idea could be a modern - day Romeo and Juliet type of story within the 'Girl Meets World' universe. The girl and boy come from families with some sort of long - standing feud, but they meet by chance and immediately feel a connection. Another could be that the girl is new in school and the boy is the popular one who is initially mean to her but then realizes his mistake and they fall in love. Or perhaps they meet during a school project and at first they don't get along but as they work together, they discover they have a lot in common.
To survive as a villain in a BL manhwa, you have to be strategic. Understand the weaknesses of the heroes and exploit them. Also, build alliances when it suits you, but be ready to betray them if necessary.