@blazing_daze You picked a very poor example to compare this to.
Superhero films like the Marvel and DC movies try and capture the essence of the characters and basic narrative ideas and use them as the base of their adaptations, but they aren't trying to make literal 1-to-1 adaptations of the source material. They also often borrow bits and pieces of the character from different arcs across multiple stories they've been in and condense or distill them into their film iteration, essentially creating a sort-of composite character that reflects different aspects of that single character across the multiple stories in the comics (often written by different writers). It's the quality and execution of the story, and faithfulness to the essence of the character(s) that make an adaptation good, not necessarily completely following the plot/events in the source material to a T.
This manhwa isn't taking the Marvel Studios approach in adaptations. I read the novel. The manhwa is essentially a perfect 1-to-1 adaptation of the novel thus far. It trims some of the fat but every arc has been covered faithfully and in the same order as the events of the novel up to this point. The only difference is the medium being used to tell the story. For all intents and purposes, this
is still the beginning of the story and Dani and all her friends will get their development. The story is just slower paced than most because it's so much longer than many of its contemporaries in the genre.