Regressor Instruction Manual: A Manhwa Similar to Solo Leveling?

Regressor Instruction Manual takes the regression formula and leans into comedy. Giyoung is summoned with the worst possible stats, then discovers Hyunsung, a returner who knows the world's script, and decides to glue himself to that advantage. The system-savvy twist is that winning means reading other players' status screens and manipulating the tutorial, not grinding alone. For readers asking for a manhwa similar to Solo Leveling, this shares the power fantasy but trades brooding for scheming.

Domi writes it and Midnight Studio draws it, serialized on KakaoPage since October 2021 with nearly 190 chapters and still updating weekly. The cast is huge and the harem beats are loud, so the early chapters can feel crowded, but the side players earn their spots as the world expands. It won an award as a web novel in 2019 before the comic, which explains the confident pacing and the layered guild politics.

Where it sits next to Solo Leveling and Second Life Ranker is about mood. It is funnier than either, less clean than Solo Leveling, and more talkative than most tower stories. New readers should treat the first arc as setup and push past chapter thirty, where the returner relationship pays off. If you like clever protagonists who win with information, this is an easy recommendation, just brace for the harem noise.

Editorial Discussion

Regressor Instruction Manual is a polarizing comfort read. Fans praise the brainy protagonist who treats the apocalypse like a strategy game, arguing the comedy keeps the power creep from feeling hollow and that the returner bond is the best part. Critics say the harem tags and the bloated cast dilute the tension, and that some arcs wander before paying off. Both sides agree the art is clean and the update pace is reliable. For 2027 the honest entry point is the first returner encounter; if Giyoung's scheming lands, the long run rewards you, and if the harem framing puts you off, you will know inside twenty chapters.