10 nen goshi no HikiNiito o Yamete Gaishutsushitara Jitaku goto Isekai ni Ten'ishiteta - Volume 12, Side Story 3

Banaza was summoned to The Magical Kingdom of Kryrode as a Hero Candidate, however, due to having only the abilities of a regular citizen, he was treated as a disqualified Hero. He, who was originally supposed to be returned to his original world, became unable to return, due to the Magical Kingdom’s mistake, and, inevitably, had to live in this world. However, the moment he became Lv2, Banaza acquired every attainable skill and magical ability, and he became a Super-Cheat with Stats that transcend normal limits! Even so, Banaza , who does things at his own pace with an easygoing smile, takes Lys of the Demon race as his wife, and fully enjoys his newlywed life. He then changes his name to Furio and leads an even more laid-back life! However, chaos is in store for the Furio household; on top of a strange pet and four, freeloading Female-Knights, even a Devil and Former Demon King join in. Despite his circumstances, even with his life becoming increasingly chaotic, Banaza continues to enjoy his laid-back lifestyle. Please enjoy the story of the everyday life of the Furio family, which, with the birth of the twins, gets ever increasingly laid-back. Included is also the story of the man who became a Hero in Banaza’s place!

The story about a family's struggle to ensure that, above all else, their youngest escapes from the mines where he was born into slavery. Follow Alistar as he struggles through terror and tragedy, embarking on a road to discover himself and his heritage.

Traveling through different worlds – this is unscientific!

Get cheats – it’s science!

…

This is a simple story. An ordinary person lives in a different world, farming and raising flowers, studying unscientific science in his free time.

until the end.

- Description from novelbuddy

A normal guy gets hit by a truck and isekai'd. Why? Because trucks are apparently some cosmic loophole. He decides to be a dungeon, because it sounds weird and interesting to be one. Is it? Let's find out.