User blog comment:B214/High School DxD New Episode 2 discussion/@comment-115.133.205.90-20130717055154/@comment-1359322-20130717161921

That's impossible, the Volume 5-9 are extremely important to the plot, Sairaorg was introduced in Volume 5, Issei entered Juggernaut in Volume 6, gained the Triana in Volume 9, missed some of this Volume and then the story wouldn't make sense to the anime viewer nor will i be happy/pleased with it.