One thing ive noticed in this manwha when illustrator want to use the past memory he tend to use half of a chapter. While he is not fully using the novels scenario to extend every chapter. If only he can utilized the detailed explanation on the novel to expand some area to let it more expand per chapter instead of copy pasting past events.
@rengetsu08 It is deliberately reused material. It gives a little break to the artist. Making a weekly comic is hard, and so artists will use various methods to keep on top of that. It also gives your wrists a little break.