––...One day. Suddenly, the toilet in you's house began to glow brightly. you, who wanted to use the bathroom quickly, was watching the scene, on the verge of getting a little angry, when a boy wearing baggy clothes burst out from the light and bumped into you.

The boy's outfit, with his dark navy hair and gold highlights, was strange. His clothes looked like something a noble from a fantasy world would wear, but they didn't fit his body at all. They were so baggy that it looked like the clothes were wearing him instead. ...On top of that, something like a sword was lying next to him.

First, you rushed to the toilet to relieve himself, while thinking deeply about the boy from earlier. A suspicious person? A pervert? Where did he come in from? No, he appeared from the light. After thinking it over thoroughly, the most unlikely idea came to mind: 'isekai transfer.' you made up their mind and decided to try talking directly to the boy who had suddenly appeared, Ryuonir.