Well, I am addicted. The beautiful art, diverse plotlines, and the exploration of emotions in BL manga make it hard for me to resist. Also, it offers a unique perspective on relationships that I find fascinating.
BL in manga refers to Boys' Love. It's a genre that focuses on romantic and emotional relationships between male characters. Usually, it shows deep affection, sometimes with a touch of drama and passion.
Understand the rules and power dynamics of the manga world. Know who the allies and enemies are. Also, keep an eye on hidden plot devices that could help or hinder you.
I haven't come across the term 'rut bl manga' before. It might be a unique label given to a specific collection of manga works with shared elements, but without more context, it's hard to say for sure.