Why did the hero quit in the manga a long time ago?

Maybe the hero got tired of the challenges or faced some impossible situations that made them give up.

Maybe they got tired of the constant battles and challenges. It could be that they wanted a break from the pressure and responsibility.

It's hard to say exactly. Maybe the hero's goals shifted, or they faced overwhelming opposition. Could be that they just needed a break from the action. The author might have had a creative vision for this plot development.

Maybe you lost interest in the story or the gameplay wasn't as fun as you expected.

Perhaps the writing style changed. If at first it was engaging and then became too convoluted or simplistic, that would be a reason to quit. Also, if new elements were introduced that didn't fit with the original concept of the light novel, it could turn you off.

Yes, there are. For example, 'One Punch Man' has a similar theme of heroes and their adventures.

Overall, the anime of 'Hero I Quit a Long Time Ago' does a decent job of following the manga. Some scenes might be tweaked for better animation or pacing, but the core story and characters remain intact.

It's about a hero who decides to give up their heroic deeds a while ago and the adventures that follow.

The reason could be that the hero faced insurmountable odds and felt defeated. Or perhaps there was a personal conflict that made them want to step away.

It could be that the hero wasn't satisfied with the direction the manga was taking or there were creative differences. Also, external factors like a busy schedule might have forced them to quit.