Reincarnated as a demon inside a dungeon - Chapter 137

I became a staff officer of an empire whose defeat was certain.The only way to escape from the empire with an 8-year mandatory service was through dishonorable discharge.But then…“You can be glad, Lieutenant. Thanks to your accurate instinct, our military could prevent damage in advance.”The more I struggled to be discharged, the higher my performance evaluation became.

After returning from a long day of work, I am suddenly thrown into a world that I believe to be the very game I was working on.Waking up in a strange white room, I quickly realize that I am inside my own map, although now it is just an island within a huge supercontinent.With a completely different life than the one I had before, I try to find my place in this new world. But what I didn't expect was that my creations would think that I came here to conquer everything.What to expect from this story:TragedyHaremStrange eventsA superpowered protagonist

Sue Kirin was a loser. Thirty years old with no hope for advancement at his job and no redeeming features except one, Magic. For as long as he could remember Kirin had dedicated his life to practicing the Arcane. Unfortunately, when he was passing down his knowledge to his niece, she lost control of her power resulting in a backlash of vicious energy that resulted in her being sent to the hospital, her life in critical danger.

In a world where dungeons were an essential part of it, Rein was trying to conquer as many as possible. They were the key to gain powers in the fastest possible way. So, to reach his full potential and to become the strongest, he became a great dungeon conqueror.With his trusty friends and lovers, he was definitely going to reach the peak alongside everyone. Join Rein and see how he went from strong to stronger and then the strongest.__________________1. The harem would not be too large(I'm not sure how many but probably just 4-5 main and few other here and there). All the girls would be getting their time and story.2. The story is starting when the MC is in the middle of his growth stage and not at the very beginning. But his beginning will be mentioned in the story in some form.3. I don't think I need to mention this, but obviously it will not have any NTR, rape or that kind of stuff. It is actually quite a wholesome story focusing mainly on adventure, action and bit of romance and slice of life.