Upcoming Version Character Revealed: Luka

An optimistic and carefree fighter with a mechanical arm. Skilled in mixed martial arts and is a Wildfire member.
From the fight cage to the battlefield, and from a fighter to a warrior, Luka uses his strength to protect the people of the Underworld.
He wishes to bring hope to others precisely because he had experienced despair himself.

A new character has been officially revealed by HoYoverse in their CN forum Miyoushe: Luka (4-Star Physical character). Although he never appears in the current Trailblaze Mission as of version 1.0, some players may have already noticed him from one of the Light Cones and also the official release trailer.

Resolution Shines As Pearls of Sweat
The bio for the Light Cone shows a little backstory of Luka and his current profession: a professional boxer.

“The limelight cast on the boxing ring is bright, but no brighter than all those beads of sweat running down his back.

He has long been determined to use his two fists to protect those he cherishes the most.
After all, they are the ones who ignited his determination in the first place.
They are the ones who have always been there for him, be it inside or outside the boxing ring.”

Speaking of boxing, we can see his 3D render punching a sandbag from the official trailer below (screenshot above).

Although HoYoverse didn’t mention what classes Luka is in, he may be Nihility considering ‘his’ Light Cone is in the said category. Though, take it with a grain of salt and wait for more announcements from the developer, especially since Special Program 1.1 is getting near.