[Light novel] Raising the lowest rank adventurer, raising a hero girl ~ I wasn't an uncle of the number? (5 books in total)

the publisher:
Author: Farmers Yazou, Rin Kuwashima
Size: 105mm x 148mm
Number of books: 5
Language: Japanese
Category: Light novel
Latest release date: 2023-12-28

Synopsis:
The old man who was just the number was actually the strongest !!
Hidden hero raises a true hero's strongest fantasy !!

The earth where a dungeon was born with a different world.
Kosuke Igami, a dull adventurer with the lowest rank even after the age of 30, will join the high school girl of Mizuki, a hero candidate.
Then, contrary to their expectations, the first thing Ie's mints surprised by Mizuki from the accumulated experience !!
In fact, Ie was a "legendary adventurer" that has continued to survive from any worst dungeon !!
I guess was asked by Mizuki who acknowledged his ability and learned how to fight adventurers as an instructor-.

"I'll tell you as much as possible so that you don't die."

Survival Specialized adventurers grow the strongest hero who raises talent S -class high school girls !!