Swordsmith's Spellbook

 is a weapon in SINoALICE.

Weapon Story
There was once a family of master blacksmiths known as the Sword's Scabbard.

They prospered from their intimate relationship with master swordsmen.

The heads of the household were traditionally women. This was the family's custom.

Anyone who became head of household needed to dedicate their life to forging swords for masters of the dueling and killing arts.

The master swordsman of the day was a free-spirited man, but he respected his missions and lived for the sword. The head of the Sword's Scabbard could not accept this.

She wanted him to devote everything to her, to forget his blade if only for awhile. More than anything, she yearned to bond with him in the most intimate way possible.

If not for his mission... She wanted nothing but to tie him up and bind them together, forever. Because of this, she gave up her human form and became the master's new sword.

“He'll look at me if I'm a blade.”

“He'll never leave me if I'm his sword.”

So convinced was she that she offered up her soul for the transformation.

The swordsman died on the battlefield.

Before the heavens could collect his soul, chains sprang from the sword, binding itself to the corpse. It was as if it said, "now we'll be together forever," before sucking the man's soul into the blade.

At that moment, the blade shimmered and changed color to that of a bellflower.