[Natsume's Book of Friends + Brothers' War] Three Days of Warm Ocean

Literary version: A gentle and sad boy, like light, not dazzling but very warm.Convulsions Version: Daily Stirring Events with Thirteen Sons!Reading tips: short story, no cp.The protagonist, Natsume, is the main brother fighting, and the heroine is not black.Content tags: Zongman Girls Manga┃ Search keywords: Protagonist: Natsume Takashi, Niangkou Sansan┃ Supporting roles: Brothers, warriors, monsters