[Light Novel] Hero Tan of a junior graduate investigator (4 books in total)

the publisher:
Author: Cyclamen, Tetsubuta
Size: 105mm x 148mm
Number of books: 4
Language: Japanese
Category: Light novel
Latest release date: 2023-12-01

Synopsis:
"HJ novel Grand Prize 2020 Late" Awarded!
The fastest dungeon hero tan, which is made up of the poverty explorer at the bottom!

Hayato Tenhara, an investigator who lives the most life in modern Japan where the dungeon has occurred.
He was a 16 -year -old graduate, he was a very poverty & pear, but from a mysterious beauty Hexa
I got a cheat skill called [Skill Install] and [Weapon Creation], and my life reversed a lot!
Immediately became the top searcher, and around him, who aimed for the fastest dungeon, there were also unique beautiful girls ...