英雄の休息日

From Author Wars - https://authorwars.com/books/ying-xiong-noxiu-xi-ri-3231940.html

Overview:

Title: 英雄の休息日
Author: 七野りく
Year: 2021
Type: Novels
Series: 公女殿下の家庭教師 / Private Tutor to the Duke's Daughter
Number in Series: 9

Variant Titles:

2023. The Savior's Day of Rest