@Sunny if i'm not mistaken, it's a nodachi. A japanese greatsword. It has a sibling-like sword called an odachi that has the tsubaki at the mid-way point of the sword making it half blade/ half handle and it was used (by multiple samurai per sword i think) to kill enemy horses mid battle and bring the riders down for slaughter. This is all hear-say because i can't properly remember
Just existing. Nothing to see here. 