Masatsugu Arakawa

Ungrar, the King of Viruses, has escaped from his prison cell in Vaccine World. Maya, the Goddess of Vaccine World sends Mugimaru down to Earth to find a human to accept the powers of Vaccine World and become the Magical Nurse. He finds the best (and the only willing) person for the job when he meets Komugi Nakahara. Komugi is a playful, lazy, and easily distracted (typical) teenager whose dream is to become a cosplay idol... (Anime News Network)

Drift peacefully into Neo Venezia, a city on the planet Aqua (formerly known as Mars). By the 24th century, humans have found a way to colonize the previously uninhabitable planet. As futuristic as that sounds, Neo Venezia is still teeming with rustic beauty; gondolas on wide canals and waterways are the main mode of transportation. The city itself is a faithful replication of Manhome's (the planet formerly known as Earth) Venice. (myanimelist.net)

Preparing a party for her anniversary with the King, when he failed to show up Chocola decided to run away from the castle.

Chichi, an ordinary office lady who works in Commercial Sector II of the solar system, heads to a space camp for a vacation. However, she crash-lands on a planet that is a "graveyard" for scrapped ships.