Inside the Cave of Obscenity - Chapter Volume 1 17: Maid 2

Seventeen-year-old Hajime Nagumo is your average, everyday otaku. However, his simple life of pulling all-nighters and sleeping in school is suddenly turned upside down when he, along with the rest of his class, is summoned to a fantasy world!

Another entry in what you can call the Proto Harem Series: the books written before the Harem Series that take place in the same world.

It’s about a swordswoman whose student is captured, so she goes to rescue her.

Balthazar was just a random giant crab enjoying his life in a fantasy world full of bothersome human adventurers, but then he had to go and accidentally discover the secret of attributes and levels. And also pie. With baked goods and coin as his new life goals, he turns to the competitive business of trading the random junk adventurers loot every day.Follow Balthazar as he does everything to find a baker... except leave his pond, because exploring the dangerous world out there is for suckers. Witness how adventurers just can't seem to stop dying around his home. And cheer for a crab who makes great new friends by simply buying them.Book 2 is out now, with new chapters every Monday, Wednesday, and Friday, fresh off the bakery!What to expect from this story:- No harems, not unless they're a harem of gold coins.- Silliness, lots of it. The story doesn't take itself too seriously, so you shouldn't either.- The only kind of OP here is how “overpriced” the crab's deals are.- A system simple enough for a crab to use, but still conveniently complex when necessary, for some odd reason.- Proper realistic adventurers: they're not very bright, and they make very poor decisions.- Did I mention there will be pastries?

The world has changed into something like a game.

It resembles a survival virtual reality game where people were attacked by zombies and monsters.

And I was the last user of that game.