Overall, the 'This Hero for Real' manga is a decent adaptation. It retains the core characters and main events, but there might be some minor tweaks for artistic or narrative purposes. However, these don't significantly deviate from the essence.
Well, several factors contribute. Firstly, originality is key. A book that breaks new ground, like 'Neuromancer' which introduced the cyberpunk genre, stands out. Secondly, the ability to make readers think about big ideas such as the future of humanity or the impact of technology. 'The Three - Body Problem' does this well. And thirdly, engaging storytelling. If it can keep readers hooked from start to finish, like 'The Martian' did with its survival story on Mars, it's likely to be considered a top livre.
The Boku no Hero manga is finished. It reached its conclusion after a successful run, leaving fans with a complete narrative and memories of an exciting journey.