Arihara

is a high school student who attends Saint Ishiyama Academy. He has participated in the school's special event, Saint Saint X'mas, with a fellow high school student, Madoka.

Saint Saint X'mas Arc
Arihara and Madoka participate in the Saint Saint X'mas competition together where they advance to the Top 16.

In the first round, they are selected to go sixth, pairing off against the Izuma-Aoi pairing.

Madoka
Arihara and Madoka participated together in a Saint Saint X'mas competition on Christmas Eve.