I am a short sword, just a decoration carried by the upper class nobles. One day my master said, "Wait until I come back." He left and never came back.
For this promise, I have been waiting silently for a hundred years. I thought I couldn't wait any longer. Later, "he" finally came back.
The previous head of the family liked to go shopping in Flower Street, but the current head of the family is keen on promoting the blacksmithing business. One day, he forged a sword and named it Onikiri.
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Love triangle: Minamoto Yorimitsu ← heroine ← Onikiri
Intention: If you don't forget it, there will be a response.