Oppai Dragon

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Breast Dragon Emperor Oppai Dragon (乳龍帝おっぱいドラゴン Chichiryūtei Oppai Doragon), known as Oppai Dragon for short, is a tokusatsu show in the Underworld, which follows the adventures of the titular character and his partner, the Switch Princess.

Summary

In Volume 6, Issei on his way to the Interview for the Young Devils Gathering, is told by the Underworld staff about his uprising popularity with the children of the Underworld due to his tendency of shouting Oppai and became known as the "Breast Dragon Emperor" and "Oppai Dragon" among them much to Ddraig's despair. Later, Issei entered his Juggernaut Drive after his negative feelings took over him during Asia's apparent death, going berserk. Under Vali's advice on using a song to calm Dragons, the Gremory Group played the Oppai Dragon song that Azazel and Sirzechs created which helped Issei to calm down. He managed to cancel the Juggernaut Drive after poking Rias' breasts, with Bikou coining Rias the nickname "Switch Princess".

In Volume 7, it is revealed that Azazel and the Gremory Family have made a tokusatsu program named Breast Dragon Emperor Oppai Dragon, which are based off Issei and Rias as Oppai Dragon and Switch Princess respectively and has received good ratings from the children of the Underworld much to Issei's surprise and Rias' dismay. The synopsis of the show is as the following:

"Issei Gremory, a young Devil who made a pact with a legendary Dragon, is a hero who transforms to fight the evils that threaten the Devils. The man who loves breasts and fights for breasts, he turns into the legendary Oppai Dragon to defeat those who do evil deeds!"

By Volume 15, the Oppai Dragon franchise has spread throughout various factions and is even considered by Azazel to add new characters such as the Butt Dragon Emperor into the series.

Characters

Issei as he appears during the Oppai Dragon Show

Issei Gremory/Oppai Dragon

Issei Gremory (いっせい・グレモリー Issei Guremorī) is the main protagonist of the show who transforms into the eponymous hero, the Breast Dragon Emperor, Oppai Dragon (おっぱいドラゴン Oppai Doragon). He is a man who loves breasts and fights for them. His finishing attack is the Dragon Kick. He uses the Boosted Gear and Scale Mail armour and later gains the Illegal Move Traina power up forms in season 2. He has the ability to regain his strength after touching the Switch Princess' breasts. Based on Issei Hyoudou.

Legendary Dragon

The Legendary Dragon is a powerful red Dragon that the main protagonist makes a pact with to use it's powers to fight evils which are a threat to Devils.

Rias dressed as the Switch Princess

Switch Princess

The Switch Princess (スイッチ姫 Suitchi Hime) is the main heroine of Oppai Dragon and love interest of the Oppai Dragon. Her breasts can power up the Oppai Dragon whenever he touches them. She is normally a damsel in distress, needing to be saved by Oppai Dragon, but has taken a more assertive role in combat in season 2. Based on Rias Gremory.

Koneko as she appears as Hellcat

Hellcat-chan

Hellcat-chan (ヘルキャットちゃん Herukyatto-chan) is a support character of Oppai Dragon and is also the series' mascot. Based on Koneko Toujou.

Kiba as the Darkness Knight Fang wielding a sword

Darkness Knight Fang

Darkness Knight Fang (ダークネスナイト・ファング Dākunesu Naito Fangu) is the main antagonist of Oppai Dragon season 1, but is now allied with Oppai Dragon as an anti-hero in season 2. Based on Yuuto Kiba.

Danball Vampire God

Danball Vampire God (段ボール箱吸血鬼神 Dan bōru-bako kyūketsuki-shin, lit. "Cardboard Box Vampire God") is a support character of Oppai Dragon. Based on Gasper Vladi. The Danball Vampire God was originally a villain featured on the film “Magical☆Levia-tan: Attack of the Danball Vampire God!”, where he was initially named Danball Vampire before getting upgraded into the Danball Vampire Shogun and finally into the Danball Vampire God.

Evil Dragon General Bavo

Evil Dragon General Bavo (魔龍将バーヴォ Akuma Doragon Ippan Bavuo) is the main antagonist of Oppai Dragon season 2. Based on Bova Tannin.

Leonis Rex

Leonis Rex (レオニクス・レクス) is a hero from the hero show owned by the Bael clan and an ally of Oppai Dragon in season 2. Based on Sairaorg Bael.

Marshal Phoenix

Marshal Phoenix (フェニックスのマーシャル) is the secondary antagonist of Oppai Dragon season 2. Based on Riser Phenex.

Theme Song

"The Song of Oppai Dragon" (おっぱいドラゴンの歌 Oppai Doragon no Uta)

Lyrics: Azazel
 

Composer: Sirzechs Lucifer
 

Choreography: Serafall Leviathan

There is a breast-loving Dragon living in the edge of a certain country
 

The Dragon goes for a walk when the weather is good

DRAGON DRAGON OPPAI DRAGON
 

GROPE-GROPE SUCK-SUCK PAFU-PAFU

There are so many types of breasts
 

But he likes the big ones the best
 

The Oppai Dragon also flies today
 

In an edge of a certain town, the Oppai Dragon was laughing
 

Even on a stormy day, the Oppai Dragon becomes happy by pressing breasts
 

DRAGON DRAGON OPPAI DRAGON
 

CLICK-CLICK ZOOM-ZOOM IYAAAN
 

He has seen lots of breasts, but he likes big ones the best
 

The Oppai Dragon also pushes today

Merchandise

Switch Princess Dolls

A doll with the image of Princess Switch. There are two types have been showed.

The first doll was distributed as a part of Oppai Dragon's collaboration with a hamburger chain store in the Underworld, as a kids' menu gift. When the Oppai Dragon figure presses the breasts of The Switch Princess doll, the voice Iyaaan echoes.

The second doll was created by Sirzechs' idea, as it shoots out the breasts of the doll. Issei used this doll to defeat Cao Cao by using it to shoot out a bullet filled with Samael's blood, which destroyed Cao Cao's Medusa's Eye and inflicted its curse on him

Sponge Dragon

A sponge for washing that the Gremory family has launched as a new product. During the match against the Bael Peerage, Azazel explained that Issei's head was like a dry sponge and the absorption rate was very good, but the idea was commercialized because the audience burst into laughter and someone in the audience shouted "Sponge Dragon."

Oppai Dragon’s Milk

It is special milk that is made with a unique manufacturing method that was added to the milk which can be taken from the Underworld dairy cow which is raised in the Gremory territory. The milk is tasty as it goes the throat smoothly and there is a sweet taste in it.

Oppai Dragon Dororon Youkai Clear Version

Oppai Dragon limited edition action figure. It is well crafted so that even the texture of the clear and see-through armor material is very beautiful. Because of its popularity, it sells out quickly. The figure was being sold during the Kyoto Oppai Dragon live show, which Balberith wanted to buy, although he gave away his own figure to a child whose figure was destroyed. Balberith later received a another figure from Sairaorg Bael during the Hell Disaster.

Trivia

• The show was successful to the point that it is currently being broadcasted to other factions as well.
• A running gag in the series involves legendary Dragons and those related with them saying the line "Zoom Zoom Iyaan" which is from the theme song of the show.
• In Volume 15, it is mentioned that Azazel has been considering adding Vali into the show when Bikou asked about it, much to Albion's despair.
  • In Volume 21, it is revealed that Vali is added to the show as the Butt Dragon Emperor.
• A full version of the theme song was used for a Promotional Video for Season 3, featuring clips for the previous two seasons.
• Apollon, the Greek patron god of arts finds the Oppai Dragon songs wonderful and acknowledges them.
• At the end of Volume 0 Sirzechs mentions about possibility a hero appearing in the future, who will change Underworld completely and he wants to write a song about this hero the song of peace. The Hero is Issei and the song is Oppai Dragon song.
• Le Fay, Bennia, Millicas, Lirenkus, Natsume and Balberith are huge fans of this show.
  • Bikou also watches the show due to it using the Switch Princess name he gave to Rias.
• The show itself is a huge parody of the Kamen Rider Franchise with Issei being a combination of Riders such as Yusuke Godai, Shinji Kido and Haruto Soma. While, Kiba and Vali being similar to Kamen Riders such as Ren Akiyama and Kaito Kumon.