First time writing a thread but anyways.
The Hero is a Dungeon Master!? Is a web novel that is focused on a japanese student who was summoned to be a hero but was driven out because of his noob stats. After that, he found a cave and that's where he starts his new dungeon master life, simple right? It is still on it's third chapter but hey, I'm still gonna post more 'cause I have a lot of free time. Seriously I'm still a senior high while the school is very lenient :). Anyway if you're looking for a dungeon master MC with dungeon building, this is the novel for you!!!
This web novel has gore and profanity content.

Edit: Added sexual content tag. But I think this is just ecchi???