As a replica blade of Higekiri, I took Hizamaru's place, only to be broken again.
Ah, I can't remember anything from before I broke.
Later, I was sent to the Taira clan. Fortunately, I survived and was polished into a uchigatana, passing through the hands of countless people.
Other than earning Higekiri the name "Tomokiri," I have no other accomplishments.
The only regret is that, in the end, I still couldn't escape being sunk into the sea.
1. There's so little information about Kogarasumaru, so I decided to make everything up.
2. Updates whenever inspiration strikes.
4. Taira and Minamoto clan rivalry.
5. Kogarasumaru doesn't remember Higekiri, only the other old blades from Heian-kyo, the little ancestor.