the "days until marriage" is gone and imo that's great, it was creating needless plot holes it being 100 irl days well give the author way more freedom
The whole point of "100 days" format is that it is a constraint that encourages to keep the story moving. It's about the characters living in the now and how we live along with them in those 100 days. The flashbacks and the characters guiding use through those flashbacks is unnecessary. The story needs to move in sequence. We saw Croc dwelling on the past but it never stopped the story moving forward. In fact, it was as signal to other characters that he needed help. The "100 days" label is meaningless if one don't adhere to it. This manga is just a normal romcom now. Even the 100 Gyaru is still keeping with it.