You've found the official fanlisting to the series Onmyou Taisenki! Onmyou Taisenki is a serialized manga by artist Tomizawa Yoshihiko and writer Kaidou Hiroyuki. It ran in monthly V-Jump from 2004 to 2006. The anime series produced by Sunrise ran from September 30, 2004 to September 29, 2005. It is 52 episodes long.
About the site
The name Sora Kakeagaru comes from the first ending song to the anime series.
Sora Kakeagaru is approved by The Anime Fanlistings Network. This fanlisting got taken off The Anime Fanlistings Network permanently for lacking updates (3 strikes), but who didn't see that coming? People like... don't care about fanlistings these days anyway. xD But I'll still keep the list up and accept join requests for it.