Shame, the start is a bit rough and not the greatest adaptation to webtoon format but reading all the chapters in one go made this a much better experience than when I was trying to read them as they were being released a while back.
The ideas and concepts being explored here have more depth and complexity than your average webtoon and I can see why the novel is praised so highly back in Korea. It's important to remember that Boris is actually a kid, not some regressor inhabiting the body of a kid.