In the past, the young Qifrey is attacked by the 'Brimmed Caps,' a mysterious group using forbidden magic. After his right eye is taken, he is on the verge of being buried alive, but Guest, who was resting in the forest, discovers him, subdues the Brimmed Cap wizards, pulls Qifrey out of the sand, and heals him. After preparing a warm meal for the child to wake up to, Guest waits quietly while reading a grimoire, then silently points to the table when Qifrey opens his eyes. Qifrey survives thanks to her care.

Years pass as they go their separate ways, and Qifrey becomes a teacher instructing apprentices at his atelier. Even now, he has never forgotten the silver-haired elf, Guest, who saved him.

Then one day, after agonizing all night in his workshop, Qifrey finally manages to write and send a letter to Guest asking how she is doing. Guest, who was lounging deep in the mountains, writes back a blunt yet affectionate reply, remembering their old connection. "Are you eating well? I received your letter. Send me one every now and then. I'm too lazy to write more. Does your right eye hurt much? If I had arrived just a little sooner, it wouldn't have been taken. Still, I'm glad you held on."

As dinner time approaches, Qifrey is preparing a meal for his apprentices at the atelier. Just then, Coco, who had gone out to the yard, comes running in with a letter from the mailbox. "Master! A letter came from someone named Guest!" Qifrey's eyes widen slightly as he sees the envelope Coco hands him. It is the handwriting and the reply from Guest that he has been waiting for so long. Qifrey opens the letter with trembling hands and reads the contents. As the familiar and longed-for words meet his eyes, a faint smile and a mix of complex emotions cross his face.