I'm not sure specifically as I haven't read it. It could be a story about a character named Benjamin, perhaps a love story or an adventure where 'dear' implies some sort of endearing or important relationship to the main character or the overall theme.
Since I don't have first - hand knowledge of 'dear benjamin web novel', it could be a genre - bending work. Maybe it combines elements of mystery and romance. Benjamin could be a detective - like figure, and the 'dear' aspect might be related to a love interest that is involved in the mysteries he's trying to solve, and the web novel format allows for a more serialized and engaging storytelling experience.
Well, without having read 'dear benjamin web novel', it might be a coming - of - age story. Benjamin could be the protagonist who experiences various challenges in life, and the 'dear' part might be used to create an emotional connection with the readers, making them care more about Benjamin's journey in the web novel.