Iselus

Iselus El-Arde Corwen (also translated as Itherus by Sentai Filmworks) is the third child of Feynail and Saraliya, and the younger brother of Risselthea and Rayneshia.

As the only male direct descendant of Serjiad Corwen, he is the primary candidate to succeed his grandfather as head of the Eastal League of Free Cities. Currently, his father serves as his guardian.

He was first introduced in the Log Horizon TRPG supplementary material, but made an official appearance in volume 10.

Appearance
As a young boy, Iselus has a short stature and barely reaches Isaac's waist. He typically wears a green jacket with off-white pants and boots.

Personality
Iselus is young and excitable, particularly when it comes to Adventurers. However, despite his youth, he is intelligent and observant thanks to his strict upbringing as the successor to the House of Corwen.

Before the Catastrophe
Iselus is the child of Feynail and Saraliya, and thus the grandson of Serjiad Corwen. Because Serjiad himself has no sons, Iselus will inherit his place in the Eastal League of Free Cities, despite his young age&mdash;nearly eight years younger than Rayneshia, and much younger than his eldest sister Risselthea.

Return of the Goblin King arc
Although Iselus is not seen in this arc, he was aware of the Adventurers' help in defeating the main Goblin forces and began idolizing them after that. He often pleads to travel to Akihabara, where his sister took up residence following the events at the Conference of Lords and Goblin Extermination Force.

Homesteading the Noosphere arc
After Isaac and the Black Sword Knights are sent to Maihama to help improve relations with Eastal, Iselus quickly gains a liking towards Isaac and pursues him everywhere, to the man's annoyance. However, Isaac quickly comes to realize, after being assigned to protect him, that he was much more mature than he looked, as he was seen making plans to improve Maihama despite his young age.

Trivia

 * Iselus shares his voice actress, Mariya Ise, with his sister.