Kay ch79
Hangul 케이
Romaja Kei
Alias Sir Kay
Race Human
Gender Male Male
Professional Status
Affiliation Britain
Teams Knights of the Round Table
Partners Merlin
Personal Status
State Alive
Weapons Sword
Manhwa Chapter 37

Sir Kay (케이 Kei) is one of the Knights of the Round Table. He was first seen with Sir Gawain. He fought and lost to Calia. He is currently the only knight who believes Mordred shouldn't be the next King of Britain.


Kay is a middle aged man with long, pale hair and a black mustache and goatee. Kay equips a full body armor, excluding his helmet and with a cape.


Kay is a disrespectful knight who believes Britain shouldn't rely on the WHs. He respects Arthur but doesn't believe in Mordred. He was outraged at being compared to Lancelot, branding him as a traitor. He is also very confident in his abilities as shown when he believed he could defeat Calia, or when he almost attacked Tania when she declared him to be a coward.


Fights in Britannia ArcEdit

Kay is seen talking to Gawain about the WHs, Britain's King and the most recent attack by witches and how they have nothing to worry about because Sir Bedivere.

He is later seen battling Lady Calia's Metal Armors, managing to defeat everyone, making Calia comment on his strength. When Calia begins fighting him, he is completely dominated.

After Merlin's reappearance and the retreat of South and Lady Calia, Kay is seen interrogating Merlin about his reappearance. In response to his indignation, Merlin merely replies that he has returned to Britain because the King has returned.

Escape from Britain ArcEdit

Kay is present during the meeting between Merlin and the S-Class WHs. When he acted disrespectful, Gawain had to yell his name to silence him.

Invasion ArcEdit

Merlin consults him and Sir Gaiwan after sending letters to North, East, and South. He orders Sir Kay to go south, and kill all witches south, as well as all WH's invading south. Sir Kay gladly agrees to do this.

Powers and AbilitiesEdit

He is considered exceptionally strong as a human, being a Knight of the Round Table, but is weaker than Lady Calia.

Master Swordsmanship: He has shown great skill with the sword, managing to defeat Calia's Metal Armors with ease, although it was noted that his movements weren't as fluent as Lancelot du Lac's.



The two knights get along more or less, although they often disagree. Kay shows respect towards Gaiwan as he listened to him during the meeting between Merlin and the S-Class WHs.

Lancelot du LacEdit

Kay holds a strong grudge against Lancelot due to Lancelot betraying Britain.He considers Lancelot an enemy and was disgusted when compared to Lancelot. Kay openly insults Lancelot going as far as calling Lancelot trash during his and Calia's battle.


Kay evidently dislikes Mordred and has a fierce belief that she shouldn't rule Britain. He speaks rather rudely about her, something which upsets his comrades.