A female, Kysiariena Arctyrella, a native of the elven mystical nations from Ijyiakaryai, has earned a rather good reputation as a exponential Phantom Thief, going by the name of Lysine Kiyiaisia.

Her fame has been rampant all over and there has been a stir in the galaxy leading to different groups. The United Galactic Federation and the Null Accord (aka Alien Union), which are on opposite sides of the political divide, are both after her and her accomplices. It is not just her native spatial lands of the elven Ijyiakaryai, but hundreds of other forces who are keen to take her to book.

Being one of the lethal four phantom thieves, Lysine teams up with Taurine, Methionine, and Valine in their exploits. The competition to get these elusive criminals becomes harder and both the good and the evil close to each other vie to be the first to get them.

However parties will came to last, it is prophesied that these four Phantom Thieves will turn on each other and split into two opposite allegiance.

And Lysine herself unknowingly struck in a path of fate, where it is her that would reveal the dark secrets, leading to the Ijyiakaryai and Tiariean discovery of the malicious deeds of the unknown Isindor and eventually lead on both races to enter the ongoing great intergalactic wars on the side of the benevolence, right after some of her former colleagues betrays her and join the side of the devils...