Well, you could say there are hints of love here and there. But it's not a conventional love story. The series is primarily known for its action and supernatural elements with love being a secondary aspect.
There are several interesting characters. Akutagawa Ryuunosuke is one. His dark and brooding nature, along with his 'Rashomon' ability, makes him a formidable presence. Then there's Kunikida Doppo, with his strict ideals and his useful 'Doppo Poet' ability. The interactions between these characters, whether it's their rivalries or their unexpected alliances, are what make them so interesting in the context of the Dead Apple novel.
The Dead Apple novel features a complex plot. One key point is the appearance of the 'Dead Apple' phenomenon which causes various threats. It also delves deeper into the abilities and pasts of the characters. For example, we learn more about Fyodor Dostoevsky's motives and his role in the events. Another important aspect is how the different ability users interact and deal with this strange and dangerous situation.
Bungo Stray Dogs is both. It began as a light novel and then was transformed into a manga. The light novel provides detailed storytelling, while the manga brings the characters and scenes to life visually.