To the Magic Sword Being Born (生まれゆく魔剣へ) is a special short story given to those who purchased volume 6 of DanMachi in Gamers.
Summary[]
Welf had been forging throughout the night without sleeping in his workshop. He had finished Bell's equipment and was now working on a magic sword he had decided to make.
In his mind, he told the weapon that he would no longer ask for forgiveness and instead ordered it to help his friends. Once it was done Welf named it Shirahime. Whenever he chose a name for a magic sword, he did so without care. This was to avoid growing attached to a weapon that was destined to break. However, the name was also Welf's gift to the weapon.
Welf placed it beside the other magic sword he had already made. When dawn began to break, the swords bathed in the morning light shone towards Welf.