Level 1 Rakudai Eiyuu no Isekai Kouryaku

is a Japanese light novel series written by Hideaki Mayoya, with illustrations by Benio. The series began publication on September 10, 2015 by ASCII Media Works under their Dengeki Bunko publishing imprint.

Synopsis
Earn experience points with a disappointing beautiful girl from another world. You can't level up at a party like this!

I can't be in the "I TUEEEE" state, which is common in summoning different worlds, and of course my initial level is "1". I want to go home quickly.

"But Keita, you can't go back to the original world unless you raise the level! Let's go to earn experience points in the dungeon together!"

"Kuku, Keita. You have the talent of the Demon King, level up. I'm sure I would wake up in the murderous intent of the wave if! "

such I that teamed the party, different world and a game geek girl Rizera of, Kusosukiru retention of Asmodian Narumie. (← Honestly both are weak).

I feel like it's already packed. I wonder if I can capture this world ...