My other:
Sir Crocoliles Hook|Garrisons Blade|The Alligator|Green Dragon Crescent Blade|Bleach weapons|D-Greyman weapons|Soul Eater weapons|Stormbringer|Black Sword, Yoru|Rorona Zorros Katanas|ApachiiSkyHair Retexture|My Coolsims retexture mod|Vampire Gameplay Overhaul|Rans and Yinsiyue Hairstyles Retexture|Kuma Kuma Kokuma Hair and Bagserk Hair Retexture|Beautiful Hair Retexture|Iron Claw Daggers Fist Weapons Retexture|Soulfang & Darkfang

Mihawk Dulacre´s Black Sword, Yoru, from One Piece. 1hand and 2 hand version. Hope proportions and Textures match a little the Sword from the series ;)

Sword can be crafted, upgraded and enchanted. Damage is around 27.
For people who want if faster use console ( Tilde -Key, then type "Help Black" without quotes, then there is a the name from the sword and some kind of identificator "weap" before it then a number 22000xxx or else. then u type "player.additem NUMBER (2200xxx) 1. the 1 at the end is the number of swords u get.) or search in Riverwood, the buildung right to the inn upstairs in a barrel. ;)

Sadly i wasnt able to put the 1Hand version on the back so try this mod if u want

1HD Weapons on Back TS Edition by TS

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Install:
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Extract Into Skyrim\data
Activate .esp file via Launcher

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Uninstall:
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Delete folder
Skyrim\Data\Textures\Weapons\Black Sword
Skyrim\Data\meshes\Weapons\Black Sword
and in Skyrim\Data the BlackSword.esp

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3. Recommend Downloads
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Armed to the Teeth - Custom Weapons

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Credits to
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The great Eiichiro Oda for making One Piece
Bethesda Softworks
Bloodysunday