Ruben Chagar

Ruben Chagar (ルベン・シャガー) is a member of Clover Kingdom's Crimson Lion squad of the Magic Knights and a member of the Royal Knights squad.

He is the human host for the elf Rossa.

Appearance
Ruben is a tall man with a long, light-colored hair. Most of his hair is gathered into ponytail while two tufts on either side of his head are combed up into points. His sideburns are dark-colored.

While possessed by Rossa, tattoos appear on Ruben's forehead and his ears become pointed.

Personality
Ruben is fiercely loyal to Fuegoleon Vermillion.

Biography
After the Crimson Lion squad places fifth in the squad rankings, Ruben and the others are berated by their new captain, Mereoleona Vermillion, and she forces the squad to undergo training at the Ultime-Volcano Mountain Trail. Having reached the summit before sundown, Ruben is allowed to bathe in the hot springs.

A week later, Ruben attends the Royal Knights Selection Exam and is placed on Team I with X and Nils Ragus. Before their first match, Ruben and Nils question who X is, so Rill drops his disguise. During their first match, Ruben and Nils destroy the crystal after Rill defeats their opponents. Afterwards they have to drag the captain who is distracted and critiquing his painting.

During their second match, Ruben and Nils decide just to support Rill. The pair panic when faced with Team K's Compound Magic, but Rill is able to redirect the Thunder Arrow and destroy Team K's crystal.

During the final match, Ruben and Nils confront Noelle Silva and En Ringard, while Rill fights Yuno. Team I loses when Rill accidentally destroys his own crystal.

Several days after the exam, Ruben and the others selected to be Royal Knights all assemble in the Royal Capital and are placed under the command of Mereoleona. After the squad change into their new robes, Mereoleona introduces additional members and reveals the location of the Eye of the Midnight Sun's base. After the squad travels to the Gravito Rock Zone, Mereoleona explains the situation and divides the squad into teams. Rill infiltrates the dungeon with Ruben, Fragil Tormenta, and Puli Angel.

As light shines out from the dungeon, Ruben and his team begin glowing themselves and are possessed by elf spirits. Rossa possesses Ruben and the team follows Lira after he crashes through the floor.

Magic

 * Sandstone Magic: Ruben uses this form of magic to generate and manipulate sandstone.

Equipment

 * Grimoire: Ruben possesses a grimoire that contains various sandstone-based magic spells.

Fights

 * Team I vs. Team J: Win
 * Team I vs. Team K: Win
 * Team I vs. Team P: Loss
 * Mereoleona Vermillion vs. Five Elves: Interrupted

Events

 * The Hot Spring Training Camp
 * Royal Knights Selection Exam
 * Attacking the Eye of the Midnight Sun Base