Upon landing on the trading colony Termeen Prime, Hiro rescues Mimi, a young girl being attacked by thugs in the third section. She had lost her parents and had nowhere to go. Unable to leave Mimi in such a state, Hiro decides to welcome her to the Krishna as a new crew member. Mimi is initially bewildered by the sudden change of living together on the spaceship, but with Elma's help, she boldly grows closer to Hiro. Meanwhile, news arrives that Hiro and his crew are planning a large-scale operation to eliminate space pirates.

Takahiro Sato, an office worker leading a boring life, wakes up to find himself in a universe that looks exactly like a sci-fi game. He has the ultimate spaceship, Krishna, in his possession. Piloting the overwhelmingly powerful spaceship, Takahiro survives his first battle against space pirates and heads to the trading colony of Termeen Prime as "Captain Hiro." There, he meets a beautiful soldier and a veteran mercenary space elf. Armed with the strongest equipment, Hiro's carefree mercenary life begins.