The web novel that this is based on is a nice slow burn...thorough introduction to the MC with enough tidbits of back story to make you want to learn more, solid establishment of the setting. By the time that Lit shows up some 20-30 chapters later, you know all of Red's foibles and aspirations, you are clear on the dynamic of the small town drama of the setting, you have fleshed out at least one antagonist and set the stage for others to step in as needed.
Once Lit arrives, their shared story, and her personal story, are pieced together naturally with the telling of the ongoing frontier slow-life narrative that helps define both Red and Lit and provides the motivations for their actions and attitudes that have to develop for the next few story arcs to take place. The pacing is intentionally slow and languid, as a reflection of temperament of the characters, and later to act as contrast as elements from the past start to catch up to Red and Lit, despite their best efforts to take it easy and stay retired.
Compared to the aimless bouncing from crisis to crisis that embodies most web novels, this one is distinct in its thoughtfulness and restraint, both in action and in the author's planning of the story. You are at least 130 chapters in before things start to catch up to our main two characters in earnest, and by that time the pressure has gradually increased enough that having the back story crash into the main story is a relief, even as it shakes things up and starts dragging you off down the bumpy train in a complex web of plot that was fully earned.
So for this manga to bring in Lit by the second chapter and to vomit our all Red and Lit's shared backstory by the end of the fourth chapter is a real disservice to the source material. The Muses weep.