It's very formulaic, the same worlds, same stereotypical characters, that every (quick) transmigration novel has.

Yeha, the trope is hard to write, especially quick-wear always suffers in the characterisation-department because of a lack of time, so MC and ML need to carry the story.

But they don't.

MC is a Gary Stu without actual character, he just exists, does his job, cheats his way through the worlds thanks to his system, can't die if he doesn't want to and therefore faces no struggles at all.
Interests? Likes and dislikes? How he thinks/feels about things?
Nothing.
He has no real personality but emulates the one the original body-owner had, apart from that he's a self-insert blank slate.

I'm only at the end of arc 2 and ML isn't any better, a "new" person in every world, but he too is a Gary Stu.

There's no real world-building in quick-wear so that can't save the novel either.

It's really a package full of air that borrows heavily from older novels but seems even less professional than most of them.

The story progress in a very fast paced, they got together pretty quickly except the first arc, villains die easily since they're quite s*upid in as early as 4 or 5 chapter.

I just finished reading this and I have no idea what I read... The arcs end so quickly that you don't even notice, and the ML and mc's interaction is like... so brief? which I didn't mind for a while, but then it got to the point where it felt like this wasn't even a BL anymore.

The villains are easily defeated and are always women. Of course, this is not unique to BL, where the villains are always female.

The last arc was strange to me because MC is in the... more>> body of a child and ML still makes a move on him.

The novel moves so quickly that you don't realize you've reached the final chapter. <<less

It's about how to fix some little worlds plot (which is collapse because of an outsider) and lead the son of luck to be success. Pretty short in each arcs. A light reading, no up down, mindless, easy to understand (?)

It was very ok. The ML's personality kept changing in every world, for example in one world he was cold and domineering, the next he became very aimable. The 'love' was also non-existent, they fell in love very randomly and instantly at the end of every world. They seemed more like friends than lovers tbh.