On a starry night, back when he was just 10 years old, Hoshikawa Subaru's life changed forever.
At 19:44 on one Friday night, he stared up at the stars, thinking of his missing father Hoshikawa Daigo, when suddenly he found himself face to face with an extraterrestrial. It was as tall as he was, made up of some green energy and covered mostly in blue armor that gave him somewhat of a dog like appearance. His name was War-Rock, and he was a being that resided on the electromagnetic spectrum. And he bought company with him, EM Viruses far stronger than the ones seen on Earth, and far smarter too, able to hijack the abandoned train at