This manga is very good if you can turn your brain off, because despite all the trappings of gore and nudity, it definitely falls into the shounen genre (even though mangadex lists it as seinen).
Slap a random fancy name on a simple flanking maneuver, and suddenly it's a brilliant move worthy of a Genius-Strategist-Great-General-of-the-Heavens, or some such nonsense.
And the MC is an idiot who relies solely on blind luck and the power of friendship to accomplish his goals.
This is not something you want to read with an analytical mindset, but it might be a great read if your brain is already numb from work and you're just looking for something stupid and entertaining.