25 books • 1 series
Book #2: High School DxD, Vol. 2 (light novel)
Book #3: High School DxD, Vol. 3 (light novel)
Book #5: High School DxD, Vol. 5 (light novel)
Book #6: High School DxD, Vol. 6 (light novel)
Book #7: High School DxD, Vol. 7 (light novel)
