There are only 26 episodes, the last 4 are OVA (Original Video Animation) that are extensions to the series.
Yes, there is only one season and no amount of petition will bring about a sekunde because of the ending, the work that went it to it, and the fact that the original mwandishi would like to be done with it.
There are 26 Episodes and 4 OVA Episodes. The orodha of Episodes are: 1.City Of Howls 2.Toboe, Who Doesn't Howl 3.Bad Fellow 4.Scars in the Wasteland 5.Fallen Wolves 6.The Successors 7.The maua, ua Maiden 8.Song of Sleep 9.Misgivings 10.Moon's Doom 11.Vanishing Point 12.Don't Make Me Blue 13.Men's Lament 14.The Fallen Keep 15.Grey mbwa mwitu - OVA 16.Dream Journey - OVA 17.Scent of a Flower, Blood of a mbwa mwitu - OVA 18.Men, Wolves, and the Book of the Moon - OVA 19.A Dream of an Oasis 20.Consciously 21.Battle's Red Glare 22.Pieces of a Shooting Star 23.Heartbeat of the Black City 24.Scent of a Trap 25.False Memories 26.Moonlight Crucible 27.Where the Soul Goes 28.Gunshot of Remorse 29.High Tide, High Time 30.Wolf's Rain Hope it helped^.^ If not, then I am sorry for bother you.