I returned to Earth after hunting demons in the otherworld for three hundred years. However, I did not return alone.
Original Novel:
Munpia, Naver Series
Original Webtoon:
Naver Webtoon, Naver Series
125 Chapters (Ongoing)






I only got into it because of the reaction faces tbh but this is surprisingly good.
MC is reincarnated into another world that is plagued by demons, becomes the lone survivor of the world and spends 300 years killing every last one of them until a Gate opens up leading him back to Earth. What happens after that is interesting to say the least, it is refreshing that he doesn't quickly change his personality to becoming normal or I don't wanna stand out bs. He lived for 300 years for god's sake (literally) I don't expect him to change suddenly.
I really like how the Knights are portrayed - with honor, loyalty, courage unlike other series where they are just complete piece of shit. Leon and his Knights epic battles and backstories are told through gates. The religious aspect is also interesting, one of my favorite part is where Leon explains the difference between religions and cults.
The comedy is great with hilarious reaction faces and especially out of context panels.
In its core, this is a "dungeons appear" manwha, but this series sometimes zags when most series would zig, this makes it a better read.
One difference is the MC is unexpected. He isn't a personality less placeholder, nor is he one of the various edge-lords, there is an attempt to depict something unique. You might not like or empathize with everything he does, but it is interesting.
Another obvious difference is its non-negative view of religion, even though the religion here is somewhat pagan. Minor spoiler
Think non-corrupt Greek pantheon trying to help humanity fight evil aliens.
Much of manga and manhwa tends to depict religion as a target for criticism, often casting nobles and kings as grotesque, corrupt figures—bloated by their greed. It is rooted in a vision that aligns with traditional values, not driven by economic critiques, but by a deeper sense of enduring principles, suggesting an inherent order that stands in contrast to the cynicism often found in contemporary storytelling. Basically based but still I felt something was lacking in its story to be remembered for long for me.
Progress: Chapter 24
This story leans hard into the MC's personality as a holy knight turned king from a fantasy setting. It's a reversal of typical isekai fics; now we have an OP paladin-king bulldozing his way through a modern Earth setting that's suffering from a "pop-up dungeon/gates" crisis. The rarely-mentioned returnee part only highlights how much Leon's mindset is shaped by 300 years as a divinely ordained king -- most of which he spent eradicating demons from his own fantasy-setting land. In short, he completely disregards modern values in favor of those from his 2nd life.
Leon's goals on Earth can be summarized as this:
Leon's flawed nature makes him satisfying to read -- his forceful personality and rampant racism against orcs comes off as humorous when contrasted against modern sensibilities. He'd fit equally well as the ultimate antagonist in a fake-utopian revenge story due to his convictions being pure but his actions having rather unfortunate consequences for his enemies (victims).
This is gold. The MC is pure arrogance personified, he REALLY reminds me of Gilgamesh from Fate/Stay franchise, except he's all about faith in the gods (good gods, not sketchy ones, like in some franchises) and uplifting humanity.
...he's also completely hilariously racist against demons and orcs. Especially orcs. It's literally the only time i've found racism to be utterly hilarious.
But the series shines when he's either being an epic MOFO with chivalry, or being a raging psycho against demons (or orcs). The side cast is also pretty great, trying to deal with this guy who has insane (yet well defined) moral code (by modern standards).
I've laughed out loud many times when reading even the first few chapters, but that continues all the way up the current chapters (36+).
Highly recommend.
As they mention the hating orcs part was kind of funny. But the way Koreans/Asians idealise royalty kills it for me. The story barely progreses and is constantly introducing more details on know nerfed the MC is or new characters without giving depth to any. I mean there are almost 40 ch out and they haven't even set the scene ...
Edit: it only gets worse, the author missed the timing for him to act normal and the fact that he originally comes from earth ends up not mattering and leaves lots of plotholes with his backstory.
Also making the demons look like porn freaks was a very bad idea.