|Also known as:||"Midnight Sky"|
|Voice actor:||Koyasu Takehito|
|Affiliation:||Sea of Estray|
|Hair color:||Midnight Blue|
A fair, young man whom embodies many of the knightly qualities, yet is not bound and hindered by them. Possesses a Noble Phantasm that, while not powerful, has been deadly enough to kill five Servants. Not only that, but he is a master of dirty tricks and underhanded tactics, a almost complete reflection of the chivalrous side he sometimes shows. This makes him a very unpredictable enemy, one that many have fought, only to lose due to the simple fact that they cannot read him at all.
He is suspected to be Sir Tristan of the Round Table.