The dark fleet Black Hole, led by General Shark, launches an attack on the Ryuseiger with a group of monster villains. Ryusei Blue, separated from his comrades and unable to contact them, resists Black Hole as the last survivor of the Ryuseiger, but he is outnumbered. He tries to exploit an opening to escape, but the moth monster's scales cause him to develop an itch, and his body is lashed with a whip. Furthermore, he is assaulted by various enemies and special attacks: the jellyfish monster's paralysis poison and electric shock, the toad monster's venom and long tongue, and the female leech monster's energy absorption. In the midst of this greatest crisis, Blue is saved by Ryusei Pink, who he thought had been defeated. However, Pink is also taken down by General Shark. Overcoming one crisis after another, Ryusei Blue fights while carrying the will of his comrades. Can he break free from this relentless series of hardships? What is the future of Earth? [BAD END]