Kousetsu

Kousetsu (江雪, kōsetsu) is a katana that was wielded by Izou.

Izou loved his sword as if it was a living being and would even talk to it. He claimed that Kousetsu needed to be fed blood regularly - something that Kousetsu itself apparently told him, along with its desire to drink rare blood, like such of a Night Raid member. He also mentioned that it outclassed Murasame in terms of "brilliance". When Izou was cut down by Akame, he offered her to take Kousetsu in order to continue feeding it, however, Akame refused.

Trivia

 * Kousetsu's name is written with the kanji for "large river" and "snow". When written as 降雪, it can mean "snowfall", and when written as 紅雪, it can be translated as "red snow".