Cave Survival: I'm Just Lucky

An idle man heading out to buy soy sauce somehow gets swept into a survival game in an underground world. At the drop of a hat, his soy sauce bottle turns into his lucky charm, letting him do what no one else can. With such a massive advantage, you'd expect him to show off like everyone else. Instead, he diligently digs, digs, builds houses, and makes machines and equipment. He doesn't show off, act cute, or try to recruit monster girls. He's determined to become a good, hardworking builder in the underground world, pressing ahead with plans to transform it.

This novel and its characters are entirely fictional. Any resemblance to actual people or events is purely coincidental. Do not imitate.