おお勇者よ! 死なないとは鬱陶しい

From Author Wars - https://authorwars.com/books/ooyong-zhe-yo-si-nanaitohayu-tao-shii-2573015.html

Overview:

Title: おお勇者よ! 死なないとは鬱陶しい
Author: 笹木さくま
Year: 2017
Type: Novels
Series: 女神の勇者を倒すゲスな方法 (The Dirty Way to Destroy the Goddess' Heroes)
Number in Series: 1

Variant Titles:

2019. Damn You, Heroes! Why Won't You Die?

Genres/Themes:

young-adult fantasy