剣雲炎華

From Author Wars - https://authorwars.com/books/jian-yun-yan-hua-2832256.html

Overview:

Title: 剣雲炎華
Author: 三屋咲ゆう
Year: 2019
Type: Novels
Series: 学戦都市アスタリスク / The Asterisk War
Number in Series: 15

Variant Titles:

2021. Gathering Clouds and Resplendent Flames