Nanashi is a foreign swordsman from the east that journeyed to Britannia and entered the Great Fight Festival at Vaizel. After the Demon Clan conquered most of Britannia, Nanashi decided to stay with King Arthur and help him defend the people of Camelot. He seems to know more than he lets on about Cath, Arthur's mysterious cat companion.
Powers and Stats
Tier: At least 7-B
Origin: Nanatsu no Taizai
Classification: Human, Foreign Swordsman
Attack Potency: At least City level+ (Casually sliced an Earth Crawler in two; another Earth Crawler was able to take several attacks from Diane, Gilthunder, and Howzer working together. Casually killed a Gray Demon with an air slash, and killed another while simultaneously cutting through its energy blast.)
Speed: Massively Hypersonic (Reacted and cut through a Gray Demon's blast at point blank range while jumping toward it)
Lifting Strength: Class G
Striking Strength: At least City Class+
Durability: At least City level+ (Should be comparable to his own attacks)
Range: Extended melee range with his sword
Standard Equipment: Sword
Intelligence: Very skillful in swordsmanship.
Weaknesses: None notable.
Iai: Heartless Waterfall: Nanashi unsheathes and slashes his sword at extremely high speeds. He can create powerful air slashes using this technique.