地味な剣聖はそれでも最強です9

From Author Wars - https://authorwars.com/books/di-wei-najian-sheng-hasoredemozui-qiang-desu9-3157904.html

Overview:

Title: 地味な剣聖はそれでも最強です9
Author: 明石六郎
Year: 2022
Type: Novels
Series: 地味な剣聖はそれでも最強です / The World's Least Interesting Master Swordsman
Number in Series: 9

Variant Titles:

2023. The World's Least Interesting Master Swordsman 9