My boy, THE Harold Stokes finally got a manga huh?! The novel for this shit was great before the author slowed down to a crippled snails pace--which I'm partially blaming his very sudden and very severe fanaticism over a group of Vtubers a few years back. It was so bad I had to unfollow him on twitter.
But that's beside the point--the novel, before it slowed down like 3 years back, was fucking fantastic! If you find you like this, and end up reading the novel but feel you need more content like this, I highly recommend "Trash of the Count's Family". It's only a novel, but unlike Death Flags here, it never slowed down. I think its in the 400's last I remember, and it despite how much I actually loved the Death Flags novel, it trounces it in every category. Another novel like this one is, "The Novels Extra", but that shit starts out great, but goes down hill and never stops going downhill in its entire 300 chapters.