Yūshun is a very good friend of Kijin and Reishin, who both took the official exams with him. In the trio, he is older by a few years. He passed first in the Exams (with the title Jogen), with Reishin passing second (Bogen) and Kijin third (Tanka). A side story of the manga shows that he first met Shūrei during her childhood, when she gave him some of her homemade buns. In the anime, Ryou Anjuu says that Yūshun is from a very noble family that even surpasses the power of both the Ran and Hong clans.