i would give this a 10/10. every life failed, I could sense the magnitude of the task and the fact that it can't be so easily solved by bullshitting your way through, he's gradually making more progress, gaining allies, but it still seems so far away bc of those damn greedy bastards. such is the sympathy i feel for mc, who lived 5 lives, worked so hard, yet still hadn't succumbed to depression, and say fuck it all. there is a lot of terminology i don't quite understand (astrophysics??), but still very enjoyable. there's practically no romance, and it honestly doesn't obstruct the story progression in any way bc mc doesn't have time for that. honestly one of the best manhwas, bc of the realistic take on this genre.
edit: looking at the tags "isekai" and "reincarnation", I sense some readers seriously don't care to know the difference, and take their time to read thru this gem of a story, and that would explain why the rating is only 9.2
ch 50. ooh the plot thickens!
Cheolsu Saves the World