Touya finds Elze's personality to be difficult at times but cares for her as much as the rest of his fiancees. He does find her habit for painfully punching him in the stomach whenever she feels embarrassed tiring.
First meeting Leen in Mismede, Touya gains Leen's interest (not romantic) by using the null spell, [Program]. She asks him to be her apprentice to which he refuses. Soon after Leen follows Touya to Mismede where She begins to follow Touya on his adventures. But Touya usually finds Leen difficult to deal with due her perverted antics.
Touya met Micah first in the Silver Moon where they became good friends. After leaving the Silver Moon, in volume 2 Touya left a present for Micah and Dolan. And in volume 4 Touya brought a hot spring inside the Silver Moon.