Ikuya Asano is another one of Youko's classmates who is transported to the kingdom of Kou.

In the novels, Asano does not exist and Youko attends an all girls school.

He goes missing after a battle between Yuka and Youko and is not seen by either of them for some time. Asano eventually becomes part of a group of Shusei and works for them as they traveled through the kingdoms. However, being in a completely alien country and lacking the ability to speak or understand the language, the strain has taken a toll on his sanity. Eventually, Asano questions the reason he was ever brought to Kou and seemingly can't find a reason for his life to go on. He dies at some point later in the anime.