[Congratulations! You are the first hero to reach Level 40! As a reward for your incredible effort, you have been gifted 8 Orichalcum Ores...]
Ruben suddenly sprang up, nearly dropping the fine sword he had just created.
His calloused hands made it difficult for even the beautiful black steel sword, which had taken a day and a half to make, to cut his hands.
"Did something happen?" he heard a sweet melodic voice from behind.
"Don't worry, some kind of system notification-like message suddenly appeared before me…" Ruben said to the girl who was sitting, watching him work as always.
"A what?" the girl, wearing comfortable work clothes, said as she tilted her head.
"Oh, well, it's hard to explain. It was something we usually see in our world…" Ruben replied, wondering why this world had game-like features such as the notification.