Licht is a tall, slender-framed elf with white skin and somewhat effeminate facial features and gold eyes. His white hair was pulled back into a single braid.
Not much is known of Licht's personality, but he was a kind and compassionate elf who sought peace between elves and humans.
Years later, Licht receives a four-leaf clover grimoire and saves a human woman from a magical tornado. Licht befriends Tetia's brother, who also believes that elves and humans will live in peace. Licht conceives a child with Tetia, hoping that it will unite the two peoples.
Months later, Licht marries her, but after the ceremony, the elves are betrayed and massacred by humans. Carrying his wife's body, Licht stands up among the dead and casts a forbidden Reincarnation Magic spell, which centuries later revives Patri's soul in William Vangeance.
Within the Gravito Rock Zone's floating dungeon, Licht's body is suspended in a giant sphere of mana. As one team of Royal Knights reaches the body, Patri succeeds in collecting all of the magic stones and placing them in the sephirot. Light pours from the stone monument, and Licht and the other elves are resurrected. Licht watches in silence as Klaus Lunette and Hamon Caseus fight and defeat Mimosa Vermillion. Rhya brings Asta before Licht, but the leader does not react to a human using his grimoire and swords.
Seeing Klaus and Hamon defeated reminds Licht of the massacre, so he catches his brethren, carries them to the ground, and then draws the sword that is stuck in the floor. Asta and Yuno ready themselves for a fight, and Asta draws the Demon-Dweller Sword. Suddenly Licht appears in front of Asta and takes the sword. He fills it with his magic and releases a series of flying slashes, forcing the boys to retreat. Yuno tries a counterattack, but the Demon-Dweller Sword absorbs the Spirit Storm and releases it back at Yuno. When Yuno closes the distance and uses Mana Zone to attack Licht from behind, the elf once again absorbs the spell. However, before Licht can release the spell, Asta and Yuno charge at him.
- Immense Magic Power: As an elf and the leader of his race, Licht possesses an immense amount of Magic Power. By concentrating extremely large amounts of mana, Licht is able to float and levitate himself and other people.
- Grimoire: Licht possessed a four-leaf clover grimoire, which contained various sword-based magic spells. Through unknown means, Licht's grimoire became Asta's five-leaf clover grimoire.
- Swords: Two of Licht's swords later became the Demon-Slayer Sword and the Demon-Dweller Sword.
- Licht is the second most beautiful man.
- His name is German and Dutch for "light."