13th Episodes of High School DxD - All 3 Seasons
I may be a step behind, but I just discovered that there are bonus episodes of High School DxD (episode 13s in all three seasons) I own all the USA released blu-rays discs! Why have I not found these before? (I found them on YouTube!) Are they on the discs? And if so …where?!
they haven't been licensed. They are OVA's bundled with separate light novel volumes which makes them harder to license. or sometimes they just aren't available at all.