"Th-This is my first review on MyAnimeList, s-so please be gentle..!" This review contains minor spoilers of the three previous seasons. Read at your own risk to avoid getting spoiled. Ah, Highschool DxD. The classical story of boobs, butts, and an actually decent plot. Not one of the first, but definitely one of the best. Yes, just like the previous installments in this series, if you don't like uncensored breasts and excessive fanservice, please go watch something else because this is without a doubt, not for you. Story: 7 The story in this one is simple, but not terrible in the slightest. It reintroduces a character who have neverbeen seen since season one, Riser Phenex. If you remember, Riser was the main antagonist of Season 1, who wanted to marry Rias, but was stopped by Issei. Now Riser's personality has completely changed, from being a badass villain to a man who's scared of even his own shadw. His younger sister Ravel wants help from the Occult Research Club to revert him back to his old self again because she can't stand him looking like this anymore.

Art and Sound: 9
The art is the same since season one. The characters are drawn quite well as they usually are, getting special focus on.. ahem.. That place. It's the same as all of the other seasons of High School DxD, so expect nothing different here. The sound is also quite good. The voice acting, sounds of fire, and other sounds were fun to listen to. The OP and ED were both great as well.

Characters: 9
This is where this episode and the whole anime really stands out: The characters. They're the same as before, albeit one. Riser is completely different, but that doesn't make him worse. His level of cowardliness compared to his previous badassery really makes me laugh when I think of him in the past.

Enjoyment: 10
Let's face it. I'm a pervert. I mostly enjoyed it from the sheer amount of fansservice it had.

Overall: 9
This OVA was really fun to watch, letting you know that Riser isn't just a regular antagonistic character who only mattered for season 1. It was also nothing short of High School DxD's usual amount of fanservice, which gets a plus from me. The characters are very funny and can be serious when they want to. (Which is mostly Issei, albeit mostly about Rias's breasts, which just adds to the comedy factor.) I enjoyed this episode and will most likely enjoy all episodes after this one.