Hyousuke Obra

Hyousuke "Abyss" Obra is Battallionreiger, the sixth ranger of the Akuareigers (despite the 7th to appear). He was intended to be Whalereiger prior to be deployed on the SS Adriatic.

Character History
Along with his sister, Rei, they were raised being around the workings of the Sea Research Commission. Hyousuke, however, he had strong patriotism to his native Japan, who had began increasing its numbers in fear of increasing tensions with China and North Korea.

Hyousuke is one of 500,000 total enlisted soldiers who go on many missions.

One such took him from the Aqua Raiders, Project Shinkai.

He was aboard the SS Adriatic, a ship owned by allied, and equally defense restricted Germany, that was sunk by Dark Horizon.

It was, however, later discovered that Hyousuke was able to save himself and 10 others, but the other 9 were killed Brain Amoeba Gutch.

Hyousuke was corrupted into a new general, Shamu of the Abyss (or simply Abyss). It was soon found out by his sister that Abyss was her own brother and created the Battalionriser, an advanced utility belt.

In order to free him, she initially implanted a virus in her prototype while he was weakened, splitting Hyousuke from Abyss and destroying the prototype.

He summoned a restored Adriatic, now a gattai, that Rei commanded and destroyed his monster form.

From then on, he fought alongside his sister.

Personality
Hyousuke is very patriotic and would do what is best for his country. This tatctic was used in corrupting him into Abyss.