<noinclude> <nowiki>*</nowiki> = optional row <PRE>

</PRE> </noinclude>Arakawa Ryūnosuke (荒川 龍ノ介) is a "free writer" that works for an occult magazine and the main character of Yoigoshi-hen's Alchemist Version. Arakawa was perfectly happy to come to the village on assignment in spite of all the rumors. He is very well informed on the occult theories surrounding the village about aliens and parasites, but not as well informed on the traditional legends of the demons.

Arakawa tends to panic and overreact to things. He is highly suspicious of the other members of the group, especially "Sonozaki Mion" since, according to his information, she died in the explosion at the school. In the end, though, she is not only his best chance at finding material for his article but also his best chance at surviving. Not particularly brave, he will still usually come through in a pinch. He also has the most black and white moral viewpoint of the Yoigoshi-hen group, and is quick to judge and point fingers.