Bon Ishihara

Spinoff based on the Nintendo DS RPG game by SEGA, released in Japan July, 2008. In a world where humans serve as livestock for the ruling beastman, and where sand fills the roles of water and fire. Kyrie is recruited by the "World Destruction Committee" to assist in putting an end to their world. Kyrie alone holds the power needed to do it. (Source: AniDB)

The world is about to be turned upside down for Hajime Murata. First, a strange alien ship appears over Tokyo, and then a mysterious new transfer student arrives at his school wearing an ancient school uniform. His name is Muryou, and with his arrival, everything begins to change. Students suddenly begin to display amazing psychic powers, a giant white guardian keeps appearing in the skies over the city to fight off gigantic alien creatures, and men with threatening weapons are haunting the shadows of the school grounds. With all these strange events taking place around him, Hajime is determined to figure out the truth about a world he thought he already knew. This is his story: a tale of aliens and humans, starships and spies, and friends who are often more than they appear. Join Hajime as he uncovers the mystery of Shingu: Secret of the Stellar Wars! (Source: RightStuf)

Train Heartnet is a famous assassin known as Black Cat. He works for Chronos, an organization that secretly controls the world.